minimal Common Oncology Data Elements (mCODE) Implementation Guide
2.1.0 - STU 2.1 United States of America flag

This page is part of the HL7 FHIR Implementation Guide: minimal Common Oncology Data Elements (mCODE) Release 1 - US Realm | STU1 (v2.1.0: STU 2) based on FHIR R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Extension: RadiotherapyModalityAndTechnique - JSON Profile

Active as of 2023-03-21

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

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{
  "resourceType" : "StructureDefinition",
  "id" : "mcode-radiotherapy-modality-and-technique",
  "text" : {
    "status" : "extensions",
    "div" : "<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=\"http://hl7.org/fhir/R4/help16.png\" 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)\">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</td></tr>\r\n<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>\r\n<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\"><a href=\"http://hl7.org/fhir/R4/datatypes.html#CodeableConcept\">CodeableConcept</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\">Radiotherapy Modality Extension</span><br/><span style=\"font-weight:bold\">URL: </span><a href=\"http://hl7.org/fhir/R4/StructureDefinition-mcode-radiotherapy-modality.html\">http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality</a></td></tr>\r\n<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\">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>\r\n<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\"><a href=\"http://hl7.org/fhir/R4/datatypes.html#CodeableConcept\">CodeableConcept</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\">Radiotherapy Technique Extension</span><br/><span style=\"font-weight:bold\">URL: </span><a href=\"http://hl7.org/fhir/R4/StructureDefinition-mcode-radiotherapy-technique.html\">http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique</a><br/></td></tr>\r\n<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\">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>\r\n<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>\r\n<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>\r\n<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=\"http://hl7.org/fhir/R4/help16.png\" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"
  },
  "url" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique",
  "version" : "2.1.0",
  "name" : "RadiotherapyModalityAndTechnique",
  "title" : "Radiotherapy Modality And Technique Extension",
  "status" : "active",
  "date" : "2023-03-21T04:50:14+11:00",
  "publisher" : "HL7 International Clinical Interoperability Council",
  "contact" : [
    {
      "name" : "HL7 International Clinical Interoperability Council",
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://www.hl7.org/Special/committees/cic"
        },
        {
          "system" : "email",
          "value" : "ciclist@lists.HL7.org"
        }
      ]
    }
  ],
  "description" : "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" : "urn:iso:std:iso:3166",
          "code" : "US",
          "display" : "United States of America"
        }
      ]
    }
  ],
  "fhirVersion" : "4.0.1",
  "mapping" : [
    {
      "identity" : "rim",
      "uri" : "http://hl7.org/v3",
      "name" : "RIM Mapping"
    }
  ],
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [
    {
      "type" : "element",
      "expression" : "Element"
    }
  ],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "snapshot" : {
    "element" : [
      {
        "id" : "Extension",
        "path" : "Extension",
        "short" : "Radiotherapy Modality And Technique Extension",
        "definition" : "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" : 0,
        "max" : "*",
        "base" : {
          "path" : "Extension",
          "min" : 0,
          "max" : "*"
        },
        "condition" : [
          "ele-1"
        ],
        "constraint" : [
          {
            "key" : "ele-1",
            "severity" : "error",
            "human" : "All FHIR elements must have a @value or children",
            "expression" : "hasValue() or (children().count() > id.count())",
            "xpath" : "@value|f:*|h:div",
            "source" : "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key" : "ext-1",
            "severity" : "error",
            "human" : "Must have either extensions or value[x], not both",
            "expression" : "extension.exists() != value.exists()",
            "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
            "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
          },
          {
            "key" : "TechniquesForNeutronBeamModality",
            "severity" : "error",
            "human" : "Allowed Techniques for Neutron Beam Modality",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '80347004')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '169317000' or coding.code = '1162782007'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForPhotonBeamModality",
            "severity" : "error",
            "human" : "Allowed Techniques for Photon Beam Modality",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '1156506007')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists((\n          coding.code = '441799006' or coding.code = '1156530009' or\n          coding.code = '1162782007' or coding.code = '1156526006' or\n          coding.code = '168524008' or coding.code = '1156530009'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForElectronBeamModality",
            "severity" : "error",
            "human" : "Allowed Techniques for Electron Beam Modality",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '45643008')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '1162782007' or coding.code = '1156526006' or coding.code = '168524008'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForCarbonIonBeamModality",
            "severity" : "error",
            "human" : "Allowed Techniques for Carbon Ion Beam Modality",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '1156505006')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '1156529004' or coding.code = '1156528007' or coding.code='1204242009'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForProtonBeamModality",
            "severity" : "error",
            "human" : "Allowed Techniques for Proton Beam Modality",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '10611004')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '1156529004' or coding.code = '1156528007' or coding.code = '1204242009'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForInternalRadiotherapyPermanentSeeds",
            "severity" : "error",
            "human" : "Allowed Techniques for Internal Radiotherapy - Permanent Seeds",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '169359004')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '113120007'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForLowDoseRateUsingTempRadSource",
            "severity" : "error",
            "human" : "Allowed Techniques for Low Dose Rate Using Temp Radiation Source",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '1156708005')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists(coding.system = 'http://snomed.info/sct' and (\n          coding.code = '384692006' or coding.code = '113120007' or coding.code = '14473006'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForPulsedDoseRate",
            "severity" : "error",
            "human" : "Allowed Techniques for Pulsed Dose Rate",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '1156384006')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists(coding.system = 'http://snomed.info/sct' and (\n          coding.code = '384692006' or coding.code = '113120007'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForHighDoseRate",
            "severity" : "error",
            "human" : "Allowed Techniques for High Dose Rate",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '394902000')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists(coding.system = 'http://snomed.info/sct' and (\n          coding.code = '384692006' or coding.code = '1156382005' or coding.code = '113120007' or coding.code = '1156383000' or coding.code = '384691004' or coding.code = '168524008' or coding.code = '14473006'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForHighDoseRateElectronic",
            "severity" : "error",
            "human" : "Allowed Techniques for High Dose Rate Electronic",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '438629002')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists(coding.system = 'http://snomed.info/sct' and (\n          coding.code = '384692006' or coding.code = '1156382005' or coding.code = '113120007' or coding.code = '384691004' or coding.code = '168524008' or coding.code = '14473006'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForRadioPharmaceutical",
            "severity" : "error",
            "human" : "Allowed Techniques for Radiopharmaceutical",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists( coding.code = '440252007')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '16560241000119104' or coding.code = '1156383000' or coding.code = '384692006' or coding.code = '113120007'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          }
        ],
        "isModifier" : false
      },
      {
        "id" : "Extension.id",
        "path" : "Extension.id",
        "representation" : [
          "xmlAttr"
        ],
        "short" : "Unique id for inter-element referencing",
        "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "Element.id",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl" : "string"
              }
            ],
            "code" : "http://hl7.org/fhirpath/System.String"
          }
        ],
        "isModifier" : false,
        "isSummary" : false,
        "mapping" : [
          {
            "identity" : "rim",
            "map" : "n/a"
          }
        ]
      },
      {
        "id" : "Extension.extension",
        "path" : "Extension.extension",
        "slicing" : {
          "discriminator" : [
            {
              "type" : "value",
              "path" : "url"
            }
          ],
          "description" : "Extensions are always sliced by (at least) url",
          "rules" : "open"
        },
        "short" : "Extension",
        "definition" : "An Extension",
        "min" : 1,
        "max" : "*",
        "base" : {
          "path" : "Element.extension",
          "min" : 0,
          "max" : "*"
        },
        "type" : [
          {
            "code" : "Extension"
          }
        ],
        "constraint" : [
          {
            "key" : "ele-1",
            "severity" : "error",
            "human" : "All FHIR elements must have a @value or children",
            "expression" : "hasValue() or (children().count() > id.count())",
            "xpath" : "@value|f:*|h:div",
            "source" : "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key" : "ext-1",
            "severity" : "error",
            "human" : "Must have either extensions or value[x], not both",
            "expression" : "extension.exists() != value.exists()",
            "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
            "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier" : false,
        "isSummary" : false
      },
      {
        "id" : "Extension.extension:modality",
        "path" : "Extension.extension",
        "sliceName" : "modality",
        "short" : "Radiotherapy Modality Extension",
        "definition" : "Extension capturing a modality of external beam or brachytherapy radiation procedures.",
        "min" : 1,
        "max" : "1",
        "base" : {
          "path" : "Element.extension",
          "min" : 0,
          "max" : "*"
        },
        "type" : [
          {
            "code" : "Extension",
            "profile" : [
              "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality"
            ]
          }
        ],
        "constraint" : [
          {
            "key" : "ele-1",
            "severity" : "error",
            "human" : "All FHIR elements must have a @value or children",
            "expression" : "hasValue() or (children().count() > id.count())",
            "xpath" : "@value|f:*|h:div",
            "source" : "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key" : "ext-1",
            "severity" : "error",
            "human" : "Must have either extensions or value[x], not both",
            "expression" : "extension.exists() != value.exists()",
            "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
            "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "mustSupport" : true,
        "isModifier" : false,
        "isSummary" : false
      },
      {
        "id" : "Extension.extension:modality.id",
        "path" : "Extension.extension.id",
        "representation" : [
          "xmlAttr"
        ],
        "short" : "Unique id for inter-element referencing",
        "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "Element.id",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl" : "string"
              }
            ],
            "code" : "http://hl7.org/fhirpath/System.String"
          }
        ],
        "isModifier" : false,
        "isSummary" : false,
        "mapping" : [
          {
            "identity" : "rim",
            "map" : "n/a"
          }
        ]
      },
      {
        "id" : "Extension.extension:modality.extension",
        "path" : "Extension.extension.extension",
        "slicing" : {
          "discriminator" : [
            {
              "type" : "value",
              "path" : "url"
            }
          ],
          "description" : "Extensions are always sliced by (at least) url",
          "rules" : "open"
        },
        "short" : "Extension",
        "definition" : "An Extension",
        "min" : 0,
        "max" : "0",
        "base" : {
          "path" : "Element.extension",
          "min" : 0,
          "max" : "*"
        },
        "type" : [
          {
            "code" : "Extension"
          }
        ],
        "constraint" : [
          {
            "key" : "ele-1",
            "severity" : "error",
            "human" : "All FHIR elements must have a @value or children",
            "expression" : "hasValue() or (children().count() > id.count())",
            "xpath" : "@value|f:*|h:div",
            "source" : "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key" : "ext-1",
            "severity" : "error",
            "human" : "Must have either extensions or value[x], not both",
            "expression" : "extension.exists() != value.exists()",
            "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
            "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier" : false,
        "isSummary" : false
      },
      {
        "id" : "Extension.extension:modality.url",
        "path" : "Extension.extension.url",
        "representation" : [
          "xmlAttr"
        ],
        "short" : "identifies the meaning of the extension",
        "definition" : "Source of the definition for the extension code - a logical name or a URL.",
        "comment" : "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" : 1,
        "max" : "1",
        "base" : {
          "path" : "Extension.url",
          "min" : 1,
          "max" : "1"
        },
        "type" : [
          {
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl" : "uri"
              }
            ],
            "code" : "http://hl7.org/fhirpath/System.String"
          }
        ],
        "fixedUri" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality",
        "isModifier" : false,
        "isSummary" : false,
        "mapping" : [
          {
            "identity" : "rim",
            "map" : "N/A"
          }
        ]
      },
      {
        "id" : "Extension.extension:modality.value[x]",
        "path" : "Extension.extension.value[x]",
        "short" : "Value of extension",
        "definition" : "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" : 1,
        "max" : "1",
        "base" : {
          "path" : "Extension.value[x]",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "CodeableConcept"
          }
        ],
        "constraint" : [
          {
            "key" : "ele-1",
            "severity" : "error",
            "human" : "All FHIR elements must have a @value or children",
            "expression" : "hasValue() or (children().count() > id.count())",
            "xpath" : "@value|f:*|h:div",
            "source" : "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isModifier" : false,
        "isSummary" : false,
        "binding" : {
          "strength" : "required",
          "valueSet" : "http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs"
        },
        "mapping" : [
          {
            "identity" : "rim",
            "map" : "N/A"
          }
        ]
      },
      {
        "id" : "Extension.extension:technique",
        "path" : "Extension.extension",
        "sliceName" : "technique",
        "short" : "Radiotherapy Technique Extension",
        "definition" : "Extension capturing a technique of external beam or brachytherapy radiation procedures.",
        "min" : 0,
        "max" : "*",
        "base" : {
          "path" : "Element.extension",
          "min" : 0,
          "max" : "*"
        },
        "type" : [
          {
            "code" : "Extension",
            "profile" : [
              "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique"
            ]
          }
        ],
        "constraint" : [
          {
            "key" : "ele-1",
            "severity" : "error",
            "human" : "All FHIR elements must have a @value or children",
            "expression" : "hasValue() or (children().count() > id.count())",
            "xpath" : "@value|f:*|h:div",
            "source" : "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key" : "ext-1",
            "severity" : "error",
            "human" : "Must have either extensions or value[x], not both",
            "expression" : "extension.exists() != value.exists()",
            "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
            "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "mustSupport" : true,
        "isModifier" : false,
        "isSummary" : false
      },
      {
        "id" : "Extension.extension:technique.id",
        "path" : "Extension.extension.id",
        "representation" : [
          "xmlAttr"
        ],
        "short" : "Unique id for inter-element referencing",
        "definition" : "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min" : 0,
        "max" : "1",
        "base" : {
          "path" : "Element.id",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl" : "string"
              }
            ],
            "code" : "http://hl7.org/fhirpath/System.String"
          }
        ],
        "isModifier" : false,
        "isSummary" : false,
        "mapping" : [
          {
            "identity" : "rim",
            "map" : "n/a"
          }
        ]
      },
      {
        "id" : "Extension.extension:technique.extension",
        "path" : "Extension.extension.extension",
        "slicing" : {
          "discriminator" : [
            {
              "type" : "value",
              "path" : "url"
            }
          ],
          "description" : "Extensions are always sliced by (at least) url",
          "rules" : "open"
        },
        "short" : "Extension",
        "definition" : "An Extension",
        "min" : 0,
        "max" : "0",
        "base" : {
          "path" : "Element.extension",
          "min" : 0,
          "max" : "*"
        },
        "type" : [
          {
            "code" : "Extension"
          }
        ],
        "constraint" : [
          {
            "key" : "ele-1",
            "severity" : "error",
            "human" : "All FHIR elements must have a @value or children",
            "expression" : "hasValue() or (children().count() > id.count())",
            "xpath" : "@value|f:*|h:div",
            "source" : "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key" : "ext-1",
            "severity" : "error",
            "human" : "Must have either extensions or value[x], not both",
            "expression" : "extension.exists() != value.exists()",
            "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
            "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier" : false,
        "isSummary" : false
      },
      {
        "id" : "Extension.extension:technique.url",
        "path" : "Extension.extension.url",
        "representation" : [
          "xmlAttr"
        ],
        "short" : "identifies the meaning of the extension",
        "definition" : "Source of the definition for the extension code - a logical name or a URL.",
        "comment" : "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" : 1,
        "max" : "1",
        "base" : {
          "path" : "Extension.url",
          "min" : 1,
          "max" : "1"
        },
        "type" : [
          {
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl" : "uri"
              }
            ],
            "code" : "http://hl7.org/fhirpath/System.String"
          }
        ],
        "fixedUri" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique",
        "isModifier" : false,
        "isSummary" : false,
        "mapping" : [
          {
            "identity" : "rim",
            "map" : "N/A"
          }
        ]
      },
      {
        "id" : "Extension.extension:technique.value[x]",
        "path" : "Extension.extension.value[x]",
        "short" : "Value of extension",
        "definition" : "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" : 1,
        "max" : "1",
        "base" : {
          "path" : "Extension.value[x]",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "CodeableConcept"
          }
        ],
        "constraint" : [
          {
            "key" : "ele-1",
            "severity" : "error",
            "human" : "All FHIR elements must have a @value or children",
            "expression" : "hasValue() or (children().count() > id.count())",
            "xpath" : "@value|f:*|h:div",
            "source" : "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isModifier" : false,
        "isSummary" : false,
        "binding" : {
          "strength" : "required",
          "valueSet" : "http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-technique-vs"
        },
        "mapping" : [
          {
            "identity" : "rim",
            "map" : "N/A"
          }
        ]
      },
      {
        "id" : "Extension.url",
        "path" : "Extension.url",
        "representation" : [
          "xmlAttr"
        ],
        "short" : "identifies the meaning of the extension",
        "definition" : "Source of the definition for the extension code - a logical name or a URL.",
        "comment" : "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" : 1,
        "max" : "1",
        "base" : {
          "path" : "Extension.url",
          "min" : 1,
          "max" : "1"
        },
        "type" : [
          {
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl" : "uri"
              }
            ],
            "code" : "http://hl7.org/fhirpath/System.String"
          }
        ],
        "fixedUri" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique",
        "isModifier" : false,
        "isSummary" : false,
        "mapping" : [
          {
            "identity" : "rim",
            "map" : "N/A"
          }
        ]
      },
      {
        "id" : "Extension.value[x]",
        "path" : "Extension.value[x]",
        "short" : "Value of extension",
        "definition" : "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" : 0,
        "max" : "0",
        "base" : {
          "path" : "Extension.value[x]",
          "min" : 0,
          "max" : "1"
        },
        "type" : [
          {
            "code" : "base64Binary"
          },
          {
            "code" : "boolean"
          },
          {
            "code" : "canonical"
          },
          {
            "code" : "code"
          },
          {
            "code" : "date"
          },
          {
            "code" : "dateTime"
          },
          {
            "code" : "decimal"
          },
          {
            "code" : "id"
          },
          {
            "code" : "instant"
          },
          {
            "code" : "integer"
          },
          {
            "code" : "markdown"
          },
          {
            "code" : "oid"
          },
          {
            "code" : "positiveInt"
          },
          {
            "code" : "string"
          },
          {
            "code" : "time"
          },
          {
            "code" : "unsignedInt"
          },
          {
            "code" : "uri"
          },
          {
            "code" : "url"
          },
          {
            "code" : "uuid"
          },
          {
            "code" : "Address"
          },
          {
            "code" : "Age"
          },
          {
            "code" : "Annotation"
          },
          {
            "code" : "Attachment"
          },
          {
            "code" : "CodeableConcept"
          },
          {
            "code" : "Coding"
          },
          {
            "code" : "ContactPoint"
          },
          {
            "code" : "Count"
          },
          {
            "code" : "Distance"
          },
          {
            "code" : "Duration"
          },
          {
            "code" : "HumanName"
          },
          {
            "code" : "Identifier"
          },
          {
            "code" : "Money"
          },
          {
            "code" : "Period"
          },
          {
            "code" : "Quantity"
          },
          {
            "code" : "Range"
          },
          {
            "code" : "Ratio"
          },
          {
            "code" : "Reference"
          },
          {
            "code" : "SampledData"
          },
          {
            "code" : "Signature"
          },
          {
            "code" : "Timing"
          },
          {
            "code" : "ContactDetail"
          },
          {
            "code" : "Contributor"
          },
          {
            "code" : "DataRequirement"
          },
          {
            "code" : "Expression"
          },
          {
            "code" : "ParameterDefinition"
          },
          {
            "code" : "RelatedArtifact"
          },
          {
            "code" : "TriggerDefinition"
          },
          {
            "code" : "UsageContext"
          },
          {
            "code" : "Dosage"
          },
          {
            "code" : "Meta"
          }
        ],
        "constraint" : [
          {
            "key" : "ele-1",
            "severity" : "error",
            "human" : "All FHIR elements must have a @value or children",
            "expression" : "hasValue() or (children().count() > id.count())",
            "xpath" : "@value|f:*|h:div",
            "source" : "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isModifier" : false,
        "isSummary" : false,
        "mapping" : [
          {
            "identity" : "rim",
            "map" : "N/A"
          }
        ]
      }
    ]
  },
  "differential" : {
    "element" : [
      {
        "id" : "Extension",
        "path" : "Extension",
        "short" : "Radiotherapy Modality And Technique Extension",
        "definition" : "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" : "TechniquesForNeutronBeamModality",
            "severity" : "error",
            "human" : "Allowed Techniques for Neutron Beam Modality",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '80347004')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '169317000' or coding.code = '1162782007'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForPhotonBeamModality",
            "severity" : "error",
            "human" : "Allowed Techniques for Photon Beam Modality",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '1156506007')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists((\n          coding.code = '441799006' or coding.code = '1156530009' or\n          coding.code = '1162782007' or coding.code = '1156526006' or\n          coding.code = '168524008' or coding.code = '1156530009'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForElectronBeamModality",
            "severity" : "error",
            "human" : "Allowed Techniques for Electron Beam Modality",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '45643008')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '1162782007' or coding.code = '1156526006' or coding.code = '168524008'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForCarbonIonBeamModality",
            "severity" : "error",
            "human" : "Allowed Techniques for Carbon Ion Beam Modality",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '1156505006')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '1156529004' or coding.code = '1156528007' or coding.code='1204242009'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForProtonBeamModality",
            "severity" : "error",
            "human" : "Allowed Techniques for Proton Beam Modality",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '10611004')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '1156529004' or coding.code = '1156528007' or coding.code = '1204242009'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForInternalRadiotherapyPermanentSeeds",
            "severity" : "error",
            "human" : "Allowed Techniques for Internal Radiotherapy - Permanent Seeds",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '169359004')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '113120007'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForLowDoseRateUsingTempRadSource",
            "severity" : "error",
            "human" : "Allowed Techniques for Low Dose Rate Using Temp Radiation Source",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '1156708005')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists(coding.system = 'http://snomed.info/sct' and (\n          coding.code = '384692006' or coding.code = '113120007' or coding.code = '14473006'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForPulsedDoseRate",
            "severity" : "error",
            "human" : "Allowed Techniques for Pulsed Dose Rate",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '1156384006')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists(coding.system = 'http://snomed.info/sct' and (\n          coding.code = '384692006' or coding.code = '113120007'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForHighDoseRate",
            "severity" : "error",
            "human" : "Allowed Techniques for High Dose Rate",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '394902000')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists(coding.system = 'http://snomed.info/sct' and (\n          coding.code = '384692006' or coding.code = '1156382005' or coding.code = '113120007' or coding.code = '1156383000' or coding.code = '384691004' or coding.code = '168524008' or coding.code = '14473006'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForHighDoseRateElectronic",
            "severity" : "error",
            "human" : "Allowed Techniques for High Dose Rate Electronic",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists(coding.system = 'http://snomed.info/sct' and coding.code = '438629002')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists(coding.system = 'http://snomed.info/sct' and (\n          coding.code = '384692006' or coding.code = '1156382005' or coding.code = '113120007' or coding.code = '384691004' or coding.code = '168524008' or coding.code = '14473006'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          },
          {
            "key" : "TechniquesForRadioPharmaceutical",
            "severity" : "error",
            "human" : "Allowed Techniques for Radiopharmaceutical",
            "expression" : "extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').exists() and\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality').value.exists( coding.code = '440252007')\n   implies\n         extension.where(url = 'http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique').value.exists( (\n          coding.code = '16560241000119104' or coding.code = '1156383000' or coding.code = '384692006' or coding.code = '113120007'))",
            "source" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
          }
        ]
      },
      {
        "id" : "Extension.extension",
        "path" : "Extension.extension",
        "min" : 1
      },
      {
        "id" : "Extension.extension:modality",
        "path" : "Extension.extension",
        "sliceName" : "modality",
        "min" : 1,
        "max" : "1",
        "type" : [
          {
            "code" : "Extension",
            "profile" : [
              "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality"
            ]
          }
        ],
        "mustSupport" : true
      },
      {
        "id" : "Extension.extension:modality.value[x]",
        "path" : "Extension.extension.value[x]",
        "binding" : {
          "strength" : "required",
          "valueSet" : "http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-modality-vs"
        }
      },
      {
        "id" : "Extension.extension:technique",
        "path" : "Extension.extension",
        "sliceName" : "technique",
        "min" : 0,
        "max" : "*",
        "type" : [
          {
            "code" : "Extension",
            "profile" : [
              "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-technique"
            ]
          }
        ],
        "mustSupport" : true
      },
      {
        "id" : "Extension.extension:technique.value[x]",
        "path" : "Extension.extension.value[x]",
        "binding" : {
          "strength" : "required",
          "valueSet" : "http://hl7.org/fhir/us/mcode/ValueSet/mcode-radiotherapy-technique-vs"
        }
      },
      {
        "id" : "Extension.url",
        "path" : "Extension.url",
        "fixedUri" : "http://hl7.org/fhir/us/mcode/StructureDefinition/mcode-radiotherapy-modality-and-technique"
      },
      {
        "id" : "Extension.value[x]",
        "path" : "Extension.value[x]",
        "max" : "0"
      }
    ]
  }
}