<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://example.com/fhir/StructureDefinition/codeableconcept-commonsystems" />
  <version value="0.1" />
  <name value="CodeableConceptCommonSystems" />
  <title value="CodeableConcept with common systems" />
  <status value="active" />
  <experimental value="false" />
  <date value="2019" />
  <publisher value="Chris Grenz" />
  <contact>
    <telecom>
      <system value="email" />
      <value value="chris.grenz@thoughtworks.com" />
    </telecom>
  </contact>
  <description value="Slicing CodeableConcept.coding for SNOMED and LOINC by system uri." />
  <copyright value="(c)2019 Chris Grenz into public domain" />
  <fhirVersion value="4.0.0" />
  <kind value="complex-type" />
  <abstract value="false" />
  <type value="CodeableConcept" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/CodeableConcept" />
  <derivation value="constraint" />
  <differential>
    <element id="CodeableConcept">
      <path value="CodeableConcept" />
    </element>
    <element id="CodeableConcept.coding">
      <path value="CodeableConcept.coding" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="system" />
        </discriminator>
        <ordered value="false" />
        <rules value="open" />
      </slicing>
    </element>
    <element id="CodeableConcept.coding:SNOMED">
      <path value="CodeableConcept.coding" />
      <sliceName value="SNOMED" />
      <definition value="Coding in SNOMED-CT" />
    </element>
    <element id="CodeableConcept.coding:SNOMED.system">
      <path value="CodeableConcept.coding.system" />
      <fixedUri value="http://snomed.info/sct" />
    </element>
    <element id="CodeableConcept.coding:LOINC">
      <path value="CodeableConcept.coding" />
      <sliceName value="LOINC" />
      <definition value="Coding in LOINC" />
    </element>
    <element id="CodeableConcept.coding:LOINC.system">
      <path value="CodeableConcept.coding.system" />
      <fixedUri value="http://loinc.org" />
    </element>
  </differential>
</StructureDefinition>