Summary

Mandatory: 9 elements

<!-- Shareable CodeSystem -->

<CodeSystem xmlns="http://hl7.org/fhir"
>
  <!-- from Element: extension -->
 <id value="[id]"/><!-- 0..1 Logical id of this artifact -->
 <meta><!--  0..1 Meta Metadata about the resource --></meta>
 <implicitRules value="[uri]"/><!--  0..1 A set of rules under which this content was created -->
 <language value="[code]"/><!--  0..1 Language of the resource content   -->
 <text><!--  0..1 Narrative 
     Text summary of the resource, for human interpretation --></text>
 <contained><!-- 0..* Resource Contained, inline Resources --></contained>
 <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored  --></modifierExtension>
 <url value="[uri]"/><!--  1..1 
     Canonical identifier for this code system, represented as a URI (globally unique) (Coding.system) -->
 <identifier><!--  0..* Identifier 
     Additional identifier for the code system (business identifier) --></identifier>
 <version value="[string]"/><!--  1..1 Business version of the code system (Coding.version) -->
 <name value="[string]"/><!--  1..1 Name for this code system (computer friendly) -->
 <title value="[string]"/><!--  0..1 Name for this code system (human friendly) -->
 <status value="[code]"/><!--  1..1 draft | active | retired | unknown    -->
 <experimental value="[boolean]"/><!--  1..1 For testing purposes, not real usage -->
 <date value="[dateTime]"/><!--  0..1 Date last changed -->
 <publisher value="[string]"/><!--  1..1 Name of the publisher (organization or individual) -->
 <contact><!--  0..* ContactDetail Contact details for the publisher --></contact>
 <description value="[markdown]"/><!--  1..1 Natural language description of the code system -->
 <useContext><!--  0..* UsageContext 
     The context that the content is intended to support --></useContext>
 <jurisdiction><!--  0..* CodeableConcept Intended jurisdiction for code system (if applicable)   --></jurisdiction>
 <purpose value="[markdown]"/><!--  0..1 Why this code system is defined -->
 <copyright value="[markdown]"/><!--  0..1 Use and/or publishing restrictions -->
 <caseSensitive value="[boolean]"/><!--  0..1 If code comparison is case sensitive -->
 <valueSet value="[canonical]"/><!--  0..1 Canonical reference to the value set with entire code system -->
 <hierarchyMeaning value="[code]"/><!--  0..1 grouped-by | is-a | part-of | classified-with    -->
 <compositional value="[boolean]"/><!--  0..1 If code system defines a compositional grammar -->
 <versionNeeded value="[boolean]"/><!--  0..1 If definitions are not stable -->
 <content value="[code]"/><!--  1..1 not-present | example | fragment | complete | supplement    -->
 <supplements value="[canonical]"/><!--  0..1 Canonical URL of Code System this adds designations and properties to -->
 <count value="[unsignedInt]"/><!--  0..1 Total concepts in the code system -->
 <filter>  0..* BackboneElement  <!--  0..* Filter that can be used in a value set -->
  <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code value="[code]"/><!--  1..1 Code that identifies the filter -->
  <description value="[string]"/><!--  0..1 How or why the filter is used -->
  <operator value="[code]"/><!--  1..* = | is-a | descendent-of | is-not-a | regex | in | not-in | generalizes | child-of | descendent-leaf | exists    -->
  <value value="[string]"/><!--  1..1 What to use for the value -->
 </filter>
 <property>  0..* BackboneElement  <!--  0..* Additional information supplied about each concept -->
  <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code value="[code]"/><!--  1..1 
      Identifies the property on the concepts, and when referred to in operations -->
  <uri value="[uri]"/><!--  0..1 Formal identifier for the property -->
  <description value="[string]"/><!--  0..1 Why the property is defined, and/or what it conveys -->
  <type value="[code]"/><!--  1..1 code | Coding | string | integer | boolean | dateTime | decimal    -->
 </property>
 <concept>  1..* BackboneElement  <!--  1..* Concepts in the code system -->
  <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code value="[code]"/><!--  1..1 Code that identifies concept -->
  <display value="[string]"/><!--  0..1 Text to display to the user -->
  <definition value="[string]"/><!--  0..1 Formal definition -->
  <designation>  0..* BackboneElement  <!--  0..* Additional representations for the concept -->
   <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
   <language value="[code]"/><!--  0..1 Human language of the designation   -->
   <use><!--  0..1 Coding Details how this designation would be used   --></use>
   <value value="[string]"/><!--  1..1 The text value for this designation -->
  </designation>
  <property>  0..* BackboneElement  <!--  0..* Property value for the concept -->
   <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
   <code value="[code]"/><!--  1..1 Reference to CodeSystem.property.code -->
   <value[x]><!--  1..1 code|Coding|string|integer|
     boolean|dateTime|decimal 
       Value of the property for this concept --></value[x]>
  </property>
  <concept><!-- See http://hl7.org/fhir/StructureDefinition/CodeSystem#CodeSystem.concept  Child Concepts (is-a/contains/categorizes) --></concept>
 </concept>
</CodeSystem>

{ // Shareable CodeSystem
  // from Element: extension
    "meta" : { Meta }, // C?Metadata about the resource
    "implicitRules" : "<uri>", // C?A set of rules under which this content was created
    "language" : "<code>", // C?Language of the resource content
    "text" : { Narrative }, // C?Text summary of the resource, for human interpretation
    "contained" : [{ Resource }], //Contained, inline Resources
    "modifierExtension" : [{ Extension }], // C?Extensions that cannot be ignored
    "url" : "<uri>", // C? R! Canonical identifier for this code system, represented as a URI (globally unique) (Coding.system)
    "identifier" : [{ Identifier }], // C?Additional identifier for the code system (business identifier)
    "version" : "<string>", // C? R! Business version of the code system (Coding.version)
    "name" : "<string>", // C? R! Name for this code system (computer friendly)
    "title" : "<string>", // C?Name for this code system (human friendly)
    "status" : "<code>", // C? R! draft | active | retired | unknown 
    "experimental" : <boolean>, // C? R! For testing purposes, not real usage
    "date" : "<dateTime>", // C?Date last changed
    "publisher" : "<string>", // C? R! Name of the publisher (organization or individual)
    "contact" : [{ ContactDetail }], // C?Contact details for the publisher
    "description" : "<markdown>", // C? R! Natural language description of the code system
    "useContext" : [{ UsageContext }], // C?The context that the content is intended to support
    "jurisdiction" : [{ CodeableConcept }], // C?Intended jurisdiction for code system (if applicable)
    "purpose" : "<markdown>", // C?Why this code system is defined
    "copyright" : "<markdown>", // C?Use and/or publishing restrictions
    "caseSensitive" : <boolean>, // C?If code comparison is case sensitive
    "valueSet" : "<canonical>", // C?Canonical reference to the value set with entire code system
    "hierarchyMeaning" : "<code>", // C?grouped-by | is-a | part-of | classified-with 
    "compositional" : <boolean>, // C?If code system defines a compositional grammar
    "versionNeeded" : <boolean>, // C?If definitions are not stable
    "content" : "<code>", // C? R! not-present | example | fragment | complete | supplement 
    "supplements" : "<canonical>", // C?Canonical URL of Code System this adds designations and properties to
    "count" : "<unsignedInt>", // C?Total concepts in the code system
    "filter" : [{ BackboneElement }], // C?Filter that can be used in a value set
    "property" : [{ BackboneElement }], // C?Additional information supplied about each concept
    "concept" : [{ BackboneElement }] // C? R! Concepts in the code system
  }

Summary

Mandatory: 9 elements

<!-- Shareable CodeSystem -->

<CodeSystem xmlns="http://hl7.org/fhir"
>
  <!-- from Element: extension -->
 <id value="[id]"/><!-- 0..1 Logical id of this artifact -->
 <meta><!--  0..1 Meta Metadata about the resource --></meta>
 <implicitRules value="[uri]"/><!--  0..1 A set of rules under which this content was created -->
 <language value="[code]"/><!--  0..1 Language of the resource content   -->
 <text><!--  0..1 Narrative 
     Text summary of the resource, for human interpretation --></text>
 <contained><!-- 0..* Resource Contained, inline Resources --></contained>
 <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored  --></modifierExtension>
 <url value="[uri]"/><!--  1..1 
     Canonical identifier for this code system, represented as a URI (globally unique) (Coding.system) -->
 <identifier><!--  0..* Identifier 
     Additional identifier for the code system (business identifier) --></identifier>
 <version value="[string]"/><!--  1..1 Business version of the code system (Coding.version) -->
 <name value="[string]"/><!--  1..1 Name for this code system (computer friendly) -->
 <title value="[string]"/><!--  0..1 Name for this code system (human friendly) -->
 <status value="[code]"/><!--  1..1 draft | active | retired | unknown    -->
 <experimental value="[boolean]"/><!--  1..1 For testing purposes, not real usage -->
 <date value="[dateTime]"/><!--  0..1 Date last changed -->
 <publisher value="[string]"/><!--  1..1 Name of the publisher (organization or individual) -->
 <contact><!--  0..* ContactDetail Contact details for the publisher --></contact>
 <description value="[markdown]"/><!--  1..1 Natural language description of the code system -->
 <useContext><!--  0..* UsageContext 
     The context that the content is intended to support --></useContext>
 <jurisdiction><!--  0..* CodeableConcept Intended jurisdiction for code system (if applicable)   --></jurisdiction>
 <purpose value="[markdown]"/><!--  0..1 Why this code system is defined -->
 <copyright value="[markdown]"/><!--  0..1 Use and/or publishing restrictions -->
 <caseSensitive value="[boolean]"/><!--  0..1 If code comparison is case sensitive -->
 <valueSet value="[canonical]"/><!--  0..1 Canonical reference to the value set with entire code system -->
 <hierarchyMeaning value="[code]"/><!--  0..1 grouped-by | is-a | part-of | classified-with    -->
 <compositional value="[boolean]"/><!--  0..1 If code system defines a compositional grammar -->
 <versionNeeded value="[boolean]"/><!--  0..1 If definitions are not stable -->
 <content value="[code]"/><!--  1..1 not-present | example | fragment | complete | supplement    -->
 <supplements value="[canonical]"/><!--  0..1 Canonical URL of Code System this adds designations and properties to -->
 <count value="[unsignedInt]"/><!--  0..1 Total concepts in the code system -->
 <filter>  0..* BackboneElement  <!--  0..* Filter that can be used in a value set -->
  <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code value="[code]"/><!--  1..1 Code that identifies the filter -->
  <description value="[string]"/><!--  0..1 How or why the filter is used -->
  <operator value="[code]"/><!--  1..* = | is-a | descendent-of | is-not-a | regex | in | not-in | generalizes | child-of | descendent-leaf | exists    -->
  <value value="[string]"/><!--  1..1 What to use for the value -->
 </filter>
 <property>  0..* BackboneElement  <!--  0..* Additional information supplied about each concept -->
  <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code value="[code]"/><!--  1..1 
      Identifies the property on the concepts, and when referred to in operations -->
  <uri value="[uri]"/><!--  0..1 Formal identifier for the property -->
  <description value="[string]"/><!--  0..1 Why the property is defined, and/or what it conveys -->
  <type value="[code]"/><!--  1..1 code | Coding | string | integer | boolean | dateTime | decimal    -->
 </property>
 <concept>  1..* BackboneElement  <!--  1..* Concepts in the code system -->
  <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code value="[code]"/><!--  1..1 Code that identifies concept -->
  <display value="[string]"/><!--  0..1 Text to display to the user -->
  <definition value="[string]"/><!--  0..1 Formal definition -->
  <designation>  0..* BackboneElement  <!--  0..* Additional representations for the concept -->
   <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
   <language value="[code]"/><!--  0..1 Human language of the designation   -->
   <use><!--  0..1 Coding Details how this designation would be used   --></use>
   <value value="[string]"/><!--  1..1 The text value for this designation -->
  </designation>
  <property>  0..* BackboneElement  <!--  0..* Property value for the concept -->
   <modifierExtension><!--  0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
   <code value="[code]"/><!--  1..1 Reference to CodeSystem.property.code -->
   <value[x]><!--  1..1 code|Coding|string|integer|
     boolean|dateTime|decimal 
       Value of the property for this concept --></value[x]>
  </property>
  <concept><!-- See http://hl7.org/fhir/StructureDefinition/CodeSystem#CodeSystem.concept  Child Concepts (is-a/contains/categorizes) --></concept>
 </concept>
</CodeSystem>

{ // Shareable CodeSystem
  // from Element: extension
    "meta" : { Meta }, // C?Metadata about the resource
    "implicitRules" : "<uri>", // C?A set of rules under which this content was created
    "language" : "<code>", // C?Language of the resource content
    "text" : { Narrative }, // C?Text summary of the resource, for human interpretation
    "contained" : [{ Resource }], //Contained, inline Resources
    "modifierExtension" : [{ Extension }], // C?Extensions that cannot be ignored
    "url" : "<uri>", // C? R! Canonical identifier for this code system, represented as a URI (globally unique) (Coding.system)
    "identifier" : [{ Identifier }], // C?Additional identifier for the code system (business identifier)
    "version" : "<string>", // C? R! Business version of the code system (Coding.version)
    "name" : "<string>", // C? R! Name for this code system (computer friendly)
    "title" : "<string>", // C?Name for this code system (human friendly)
    "status" : "<code>", // C? R! draft | active | retired | unknown 
    "experimental" : <boolean>, // C? R! For testing purposes, not real usage
    "date" : "<dateTime>", // C?Date last changed
    "publisher" : "<string>", // C? R! Name of the publisher (organization or individual)
    "contact" : [{ ContactDetail }], // C?Contact details for the publisher
    "description" : "<markdown>", // C? R! Natural language description of the code system
    "useContext" : [{ UsageContext }], // C?The context that the content is intended to support
    "jurisdiction" : [{ CodeableConcept }], // C?Intended jurisdiction for code system (if applicable)
    "purpose" : "<markdown>", // C?Why this code system is defined
    "copyright" : "<markdown>", // C?Use and/or publishing restrictions
    "caseSensitive" : <boolean>, // C?If code comparison is case sensitive
    "valueSet" : "<canonical>", // C?Canonical reference to the value set with entire code system
    "hierarchyMeaning" : "<code>", // C?grouped-by | is-a | part-of | classified-with 
    "compositional" : <boolean>, // C?If code system defines a compositional grammar
    "versionNeeded" : <boolean>, // C?If definitions are not stable
    "content" : "<code>", // C? R! not-present | example | fragment | complete | supplement 
    "supplements" : "<canonical>", // C?Canonical URL of Code System this adds designations and properties to
    "count" : "<unsignedInt>", // C?Total concepts in the code system
    "filter" : [{ BackboneElement }], // C?Filter that can be used in a value set
    "property" : [{ BackboneElement }], // C?Additional information supplied about each concept
    "concept" : [{ BackboneElement }] // C? R! Concepts in the code system
  }