minimal Common Oncology Data Elements (mCODE) Implementation Guide
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This page is part of the HL7 FHIR Implementation Guide: minimal Common Oncology Data Elements (mCODE) Release 1 - US Realm | STU1 (v4.0.0-ballot: STU4 Ballot 1) based on FHIR (HL7® FHIR® Standard) R4. The current version which supersedes this version is 3.0.0. For a full list of available versions, see the Directory of published versions

Extension: RadiotherapyModalityAndTechnique - XML Profile

Active as of 2024-04-10 Maturity Level: 3

XML representation of the mcode-radiotherapy-modality-and-technique extension.

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<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="mcode-radiotherapy-modality-and-technique"/>
  <text>
    <status value="extensions"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><table border="0" cellpadding="0" cellspacing="0" style="border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;"><tr style="border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top"><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the the element can appear in the instance">Card.</a></th><th style="width: 100px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description &amp; Constraints</a><span style="float: right"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/></a></span></th></tr><tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-mcode-radiotherapy-modality-and-technique-definitions.html#Extension" title="Extension capturing modality and technique of a given radiotherapy procedure.  The allowed combinations of modality and technique are constrained by invariants, one per modality.">Extension</a><a name="Extension"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="padding-left: 3px; padding-right: 3px; border: 1px maroon solid; font-weight: bold; color: #301212; background-color: #fdf4f4;" href="http://hl7.org/fhir/R4/conformance-rules.html#constraints" title="This element has or is affected by constraints (TechniquesForNeutronBeamModality, TechniquesForPhotonBeamModality, TechniquesForElectronBeamModality, TechniquesForCarbonIonBeamModality, TechniquesForProtonBeamModality, TechniquesForInternalRadiotherapyPermanentSeeds, TechniquesForLowDoseRateUsingTempRadSource, TechniquesForPulsedDoseRate, TechniquesForHighDoseRate, TechniquesForHighDoseRateElectronic, TechniquesForRadioPharmaceutical, ModalityTextRequiredForOther, TechniqueTextRequiredForOther)">C</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/extensibility.html#Extension">Extension</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Radiotherapy Modality And Technique Extension<br/><span style="font-weight:bold">TechniquesForNeutronBeamModality: </span>Allowed Techniques for Neutron Beam Modality<br/><span style="font-weight:bold">TechniquesForPhotonBeamModality: </span>Allowed Techniques for Photon Beam Modality<br/><span style="font-weight:bold">TechniquesForElectronBeamModality: </span>Allowed Techniques for Electron Beam Modality<br/><span style="font-weight:bold">TechniquesForCarbonIonBeamModality: </span>Allowed Techniques for Carbon Ion Beam Modality<br/><span style="font-weight:bold">TechniquesForProtonBeamModality: </span>Allowed Techniques for Proton Beam Modality<br/><span style="font-weight:bold">TechniquesForInternalRadiotherapyPermanentSeeds: </span>Allowed Techniques for Internal Radiotherapy - Permanent Seeds<br/><span style="font-weight:bold">TechniquesForLowDoseRateUsingTempRadSource: </span>Allowed Techniques for Low Dose Rate Using Temp Radiation Source<br/><span style="font-weight:bold">TechniquesForPulsedDoseRate: </span>Allowed Techniques for Pulsed Dose Rate<br/><span style="font-weight:bold">TechniquesForHighDoseRate: </span>Allowed Techniques for High Dose Rate<br/><span style="font-weight:bold">TechniquesForHighDoseRateElectronic: </span>Allowed Techniques for High Dose Rate Electronic<br/><span style="font-weight:bold">TechniquesForRadioPharmaceutical: </span>Allowed Techniques for Radiopharmaceutical<br/><span style="font-weight:bold">ModalityTextRequiredForOther: </span>Require a text literal for code other<br/><span style="font-weight:bold">TechniqueTextRequiredForOther: </span>Require a text literal for code other</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_extension_simple.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Simple Extension" class="hierarchy"/> <a href="StructureDefinition-mcode-radiotherapy-modality-and-technique-definitions.html#Extension.extension">extension</a><a name="Extension.extension"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..<span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/extensibility.html#Extension">Extension</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Extension</span></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck15.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_slice_item.png" alt="." style="background-color: white; background-color: inherit" title="Slice Item" class="hierarchy"/> <a href="StructureDefinition-mcode-radiotherapy-modality-and-technique-definitions.html#Extension.extension:modality" title="Extension URL = http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality">modality</a><a name="Extension.extension"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">(Complex)</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Radiotherapy Modality Extension</span><br/><span style="font-weight:bold">URL: </span>http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck140.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end_slice.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-mcode-radiotherapy-modality-and-technique-definitions.html#Extension.extension:modality.value[x]">value[x]</a><a name="Extension.extension.value_x_"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Value of extension</span><br/><span style="font-weight:bold">Binding: </span><a href="ValueSet-mcode-radiotherapy-modality-vs.html" title="http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs">Radiotherapy Modality Value Set</a> (<a href="http://hl7.org/fhir/R4/terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value set.">required</a>)</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck15.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_slice_item.png" alt="." style="background-color: white; background-color: inherit" title="Slice Item" class="hierarchy"/> <a href="StructureDefinition-mcode-radiotherapy-modality-and-technique-definitions.html#Extension.extension:technique" title="Extension URL = http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique">technique</a><a name="Extension.extension"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..*</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">(Complex)</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Radiotherapy Technique Extension</span><br/><span style="font-weight:bold">URL: </span>http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique<br/></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck140.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end_slice.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-mcode-radiotherapy-modality-and-technique-definitions.html#Extension.extension:technique.value[x]">value[x]</a><a name="Extension.extension.value_x_"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Value of extension</span><br/><span style="font-weight:bold">Binding: </span><a href="ValueSet-mcode-radiotherapy-technique-vs.html" title="http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-technique-vs">Radiotherapy Technique Value Set</a> (<a href="http://hl7.org/fhir/R4/terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value set.">required</a>)</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-mcode-radiotherapy-modality-and-technique-definitions.html#Extension.url">url</a><a name="Extension.url"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#uri">uri</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="color: darkgreen">&quot;http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique&quot;</span></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <span style="text-decoration:line-through">value[x]</span><a name="Extension.value_x_"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="text-decoration:line-through"/><span style="text-decoration:line-through">0</span><span style="text-decoration:line-through">..</span><span style="text-decoration:line-through">0</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/></tr>
<tr><td colspan="5" class="hierarchy"><br/><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3goXBCwdPqAP0wAAAldJREFUOMuNk0tIlFEYhp9z/vE2jHkhxXA0zJCMitrUQlq4lnSltEqCFhFG2MJFhIvIFpkEWaTQqjaWZRkp0g26URZkTpbaaOJkDqk10szoODP//7XIMUe0elcfnPd9zsfLOYplGrpRwZaqTtw3K7PtGem7Q6FoidbGgqHVy/HRb669R+56zx7eRV1L31JGxYbBtjKK93cxeqfyQHbehkZbUkK20goELEuIzEd+dHS+qz/Y8PTSif0FnGkbiwcAjHaU1+QWOptFiyCLp/LnKptpqIuXHx6rbR26kJcBX3yLgBfnd7CxwJmflpP2wUg0HIAoUUpZBmKzELGWcN8nAr6Gpu7tLU/CkwAaoKTWRSQyt89Q8w6J+oVQkKnBoblH7V0PPvUOvDYXfopE/SJmALsxnVm6LbkotrUtNowMeIrVrBcBpaMmdS0j9df7abpSuy7HWehwJdt1lhVwi/J58U5beXGAF6c3UXLycw1wdFklArBn87xdh0ZsZtArghBdAA3+OEDVubG4UEzP6x1FOWneHh2VDAHBAt80IbdXDcesNoCvs3E5AFyNSU5nbrDPZpcUEQQTFZiEVx+51fxMhhyJEAgvlriadIJZZksRuwBYMOPBbO3hePVVqgEJhFeUuFLhIPkRP6BQLIBrmMenujm/3g4zc398awIe90Zb5A1vREALqneMcYgP/xVQWlG+Ncu5vgwwlaUNx+3799rfe96u9K0JSDXcOzOTJg4B6IgmXfsygc7/Bvg9g9E58/cDVmGIBOP/zT8Bz1zqWqpbXIsd0O9hajXfL6u4BaOS6SeWAAAAAElFTkSuQmCC" alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
  </text>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="3"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="cic"/>
  </extension>
  <url
       value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.40.15.42.45"/>
  </identifier>
  <version value="4.0.0-ballot"/>
  <name value="RadiotherapyModalityAndTechnique"/>
  <title value="Radiotherapy Modality And Technique Extension"/>
  <status value="active"/>
  <date value="2024-04-10T14:01:17+00:00"/>
  <publisher value="HL7 International / Clinical Interoperability Council"/>
  <contact>
    <name value="HL7 International / Clinical Interoperability Council"/>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/cic"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="ciclist@lists.HL7.org"/>
    </telecom>
  </contact>
  <description
               value="Extension capturing modality and technique of a given radiotherapy procedure.  The allowed combinations of modality and technique are constrained by invariants, one per modality."/>
  <jurisdiction>
    <coding>
      <system value="urn:iso:std:iso:3166"/>
      <code value="US"/>
      <display value="United States of America"/>
    </coding>
  </jurisdiction>
  <fhirVersion value="4.0.1"/>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM Mapping"/>
  </mapping>
  <kind value="complex-type"/>
  <abstract value="false"/>
  <context>
    <type value="element"/>
    <expression value="DomainResource"/>
  </context>
  <context>
    <type value="element"/>
    <expression value="Extension"/>
  </context>
  <context>
    <type value="element"/>
    <expression value="Procedure"/>
  </context>
  <context>
    <type value="element"/>
    <expression value="ServiceRequest"/>
  </context>
  <type value="Extension"/>
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension"/>
  <derivation value="constraint"/>
  <snapshot>
    <element id="Extension">
      <path value="Extension"/>
      <short value="Radiotherapy Modality And Technique Extension"/>
      <definition
                  value="Extension capturing modality and technique of a given radiotherapy procedure.  The allowed combinations of modality and technique are constrained by invariants, one per modality."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <condition value="ele-1"/>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <constraint>
        <key value="TechniquesForNeutronBeamModality"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Neutron Beam Modality"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '80347004')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '169317000' or code = '1162782007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForPhotonBeamModality"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Photon Beam Modality"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '1156506007')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '441799006' or code = '1156530009' or code = '1162782007' or code = '1156526006' or code = '168524008' or code = '1156530009' or code = '1163157007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForElectronBeamModality"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Electron Beam Modality"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '45643008')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '1162782007' or code = '1156526006' or code = '168524008' or code = '1163157007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForCarbonIonBeamModality"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Carbon Ion Beam Modality"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '1156505006')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '1156529004' or code = '1156528007' or code='1204242009')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForProtonBeamModality"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Proton Beam Modality"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '10611004')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '1156529004' or code = '1156528007' or code = '1204242009' or code = '1163157007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForInternalRadiotherapyPermanentSeeds"/>
        <severity value="error"/>
        <human
               value="Allowed Techniques for Internal Radiotherapy - Permanent Seeds"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '169359004')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '113120007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForLowDoseRateUsingTempRadSource"/>
        <severity value="error"/>
        <human
               value="Allowed Techniques for Low Dose Rate Using Temp Radiation Source"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '1156708005')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '384692006' or code = '113120007' or code = '14473006')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForPulsedDoseRate"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Pulsed Dose Rate"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '1156384006')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '384692006' or code = '113120007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForHighDoseRate"/>
        <severity value="error"/>
        <human value="Allowed Techniques for High Dose Rate"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '394902000')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '384692006' or code = '1156382005' or code = '113120007' or code = ' 1156383000' or code = '384691004' or code = '168524008' or code = '14473006')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForHighDoseRateElectronic"/>
        <severity value="error"/>
        <human value="Allowed Techniques for High Dose Rate Electronic"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '438629002')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '384692006' or code = '1156382005' or code = '113120007' or code = '384691004' or code = '168524008' or code = '14473006')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForRadioPharmaceutical"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Radiopharmaceutical"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '440252007')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '16560241000119104' or code = '1156383000' or code = '384692006' or code = '113120007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="ModalityTextRequiredForOther"/>
        <severity value="error"/>
        <human value="Require a text literal for code other"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://terminology.hl7.org/CodeSystem/v3-NullFlavor' and code = 'UNC')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.text.exists()"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniqueTextRequiredForOther"/>
        <severity value="error"/>
        <human value="Require a text literal for code other"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(system = 'http://terminology.hl7.org/CodeSystem/v3-NullFlavor' and code = 'UNC')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.text.exists()"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <isModifier value="false"/>
    </element>
    <element id="Extension.id">
      <path value="Extension.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <short value="Extension"/>
      <definition value="An Extension"/>
      <min value="1"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Extension.extension:modality">
      <path value="Extension.extension"/>
      <sliceName value="modality"/>
      <short value="Radiotherapy Modality Extension"/>
      <definition
                  value="Extension capturing a modality of external beam or brachytherapy radiation procedures."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Extension.extension:modality.id">
      <path value="Extension.extension.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Extension.extension:modality.extension">
      <path value="Extension.extension.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <short value="Extension"/>
      <definition value="An Extension"/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Extension.extension:modality.url">
      <path value="Extension.extension.url"/>
      <representation value="xmlAttr"/>
      <short value="identifies the meaning of the extension"/>
      <definition
                  value="Source of the definition for the extension code - a logical name or a URL."/>
      <comment
               value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.url"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="uri"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <fixedUri
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Extension.extension:modality.value[x]">
      <path value="Extension.extension.value[x]"/>
      <short value="Value of extension"/>
      <definition
                  value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.value[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs"/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Extension.extension:technique">
      <path value="Extension.extension"/>
      <sliceName value="technique"/>
      <short value="Radiotherapy Technique Extension"/>
      <definition
                  value="Extension capturing a technique of external beam or brachytherapy radiation procedures."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Extension.extension:technique.id">
      <path value="Extension.extension.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Extension.extension:technique.extension">
      <path value="Extension.extension.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <short value="Extension"/>
      <definition value="An Extension"/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Extension.extension:technique.url">
      <path value="Extension.extension.url"/>
      <representation value="xmlAttr"/>
      <short value="identifies the meaning of the extension"/>
      <definition
                  value="Source of the definition for the extension code - a logical name or a URL."/>
      <comment
               value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.url"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="uri"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <fixedUri
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Extension.extension:technique.value[x]">
      <path value="Extension.extension.value[x]"/>
      <short value="Value of extension"/>
      <definition
                  value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.value[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-technique-vs"/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Extension.url">
      <path value="Extension.url"/>
      <representation value="xmlAttr"/>
      <short value="identifies the meaning of the extension"/>
      <definition
                  value="Source of the definition for the extension code - a logical name or a URL."/>
      <comment
               value="The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.url"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="uri"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <fixedUri
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]"/>
      <short value="Value of extension"/>
      <definition
                  value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list)."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="Extension.value[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="canonical"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="url"/>
      </type>
      <type>
        <code value="uuid"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="Age"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Count"/>
      </type>
      <type>
        <code value="Distance"/>
      </type>
      <type>
        <code value="Duration"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="Money"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="ContactDetail"/>
      </type>
      <type>
        <code value="Contributor"/>
      </type>
      <type>
        <code value="DataRequirement"/>
      </type>
      <type>
        <code value="Expression"/>
      </type>
      <type>
        <code value="ParameterDefinition"/>
      </type>
      <type>
        <code value="RelatedArtifact"/>
      </type>
      <type>
        <code value="TriggerDefinition"/>
      </type>
      <type>
        <code value="UsageContext"/>
      </type>
      <type>
        <code value="Dosage"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression
                    value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
  </snapshot>
  <differential>
    <element id="Extension">
      <path value="Extension"/>
      <short value="Radiotherapy Modality And Technique Extension"/>
      <definition
                  value="Extension capturing modality and technique of a given radiotherapy procedure.  The allowed combinations of modality and technique are constrained by invariants, one per modality."/>
      <constraint>
        <key value="TechniquesForNeutronBeamModality"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Neutron Beam Modality"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '80347004')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '169317000' or code = '1162782007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForPhotonBeamModality"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Photon Beam Modality"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '1156506007')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '441799006' or code = '1156530009' or code = '1162782007' or code = '1156526006' or code = '168524008' or code = '1156530009' or code = '1163157007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForElectronBeamModality"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Electron Beam Modality"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '45643008')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '1162782007' or code = '1156526006' or code = '168524008' or code = '1163157007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForCarbonIonBeamModality"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Carbon Ion Beam Modality"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '1156505006')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '1156529004' or code = '1156528007' or code='1204242009')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForProtonBeamModality"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Proton Beam Modality"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '10611004')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '1156529004' or code = '1156528007' or code = '1204242009' or code = '1163157007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForInternalRadiotherapyPermanentSeeds"/>
        <severity value="error"/>
        <human
               value="Allowed Techniques for Internal Radiotherapy - Permanent Seeds"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '169359004')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '113120007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForLowDoseRateUsingTempRadSource"/>
        <severity value="error"/>
        <human
               value="Allowed Techniques for Low Dose Rate Using Temp Radiation Source"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '1156708005')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '384692006' or code = '113120007' or code = '14473006')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForPulsedDoseRate"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Pulsed Dose Rate"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '1156384006')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '384692006' or code = '113120007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForHighDoseRate"/>
        <severity value="error"/>
        <human value="Allowed Techniques for High Dose Rate"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '394902000')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '384692006' or code = '1156382005' or code = '113120007' or code = ' 1156383000' or code = '384691004' or code = '168524008' or code = '14473006')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForHighDoseRateElectronic"/>
        <severity value="error"/>
        <human value="Allowed Techniques for High Dose Rate Electronic"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '438629002')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '384692006' or code = '1156382005' or code = '113120007' or code = '384691004' or code = '168524008' or code = '14473006')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniquesForRadioPharmaceutical"/>
        <severity value="error"/>
        <human value="Allowed Techniques for Radiopharmaceutical"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://snomed.info/sct' and code = '440252007')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(code = 'UNC' or code = '16560241000119104' or code = '1156383000' or code = '384692006' or code = '113120007')"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="ModalityTextRequiredForOther"/>
        <severity value="error"/>
        <human value="Require a text literal for code other"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.coding.exists(system = 'http://terminology.hl7.org/CodeSystem/v3-NullFlavor' and code = 'UNC')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.text.exists()"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
      <constraint>
        <key value="TechniqueTextRequiredForOther"/>
        <severity value="error"/>
        <human value="Require a text literal for code other"/>
        <expression
                    value="extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists() and
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.coding.exists(system = 'http://terminology.hl7.org/CodeSystem/v3-NullFlavor' and code = 'UNC')
   implies
      extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.text.exists()"/>
        <source
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
      </constraint>
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension"/>
      <min value="1"/>
    </element>
    <element id="Extension.extension:modality">
      <path value="Extension.extension"/>
      <sliceName value="modality"/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element id="Extension.extension:modality.value[x]">
      <path value="Extension.extension.value[x]"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs"/>
      </binding>
    </element>
    <element id="Extension.extension:technique">
      <path value="Extension.extension"/>
      <sliceName value="technique"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element id="Extension.extension:technique.value[x]">
      <path value="Extension.extension.value[x]"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-technique-vs"/>
      </binding>
    </element>
    <element id="Extension.url">
      <path value="Extension.url"/>
      <fixedUri
                value="http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"/>
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]"/>
      <max value="0"/>
    </element>
  </differential>
</StructureDefinition>