Example showing how to define Section Level Profiles

{
  "resourceType" : "StructureDefinition",
  "id" : "example-section-library",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: StructureDefinition</b><a name=\"example-section-library\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource StructureDefinition &quot;example-section-library&quot; </p></div><p><b>url</b>: <code>http://hl7.org/fhir/StructureDefinition/example-section-library</code></p><p><b>identifier</b>: id: urn:oid:2.16.840.1.113883.4.642.5.1041</p><p><b>name</b>: DocumentSectionLibrary</p><p><b>title</b>: Document Section Library (For testing section templates)</p><p><b>status</b>: active</p><p><b>experimental</b>: false</p><p><b>date</b>: 2018-11-05T17:57:00+11:00</p><p><b>kind</b>: resource</p><p><b>abstract</b>: true</p><p><b>type</b>: <a href=\"composition.html\">Composition</a></p><p><b>baseDefinition</b>: <a href=\"composition.html\">Composition</a></p><p><b>derivation</b>: constraint</p><blockquote><p><b>differential</b></p><blockquote><p><b>element</b></p><p><b>path</b>: Composition</p></blockquote><blockquote><p><b>element</b></p><p><b>path</b>: Composition.section</p></blockquote><blockquote><p><b>element</b></p><p><b>path</b>: Composition.section</p><p><b>sliceName</b>: procedure</p></blockquote><blockquote><p><b>element</b></p><p><b>path</b>: Composition.section.title</p><p><b>min</b>: 1</p><p><b>fixed</b>: Procedures Performed</p></blockquote><blockquote><p><b>element</b></p><p><b>path</b>: Composition.section.code</p><p><b>min</b>: 1</p><p><b>pattern</b>: Procedure Narrative <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://loinc.org/\">LOINC</a>#29554-3)</span></p></blockquote><blockquote><p><b>element</b></p><p><b>path</b>: Composition.section</p><p><b>sliceName</b>: medications</p></blockquote><blockquote><p><b>element</b></p><p><b>path</b>: Composition.section.title</p><p><b>min</b>: 1</p><p><b>fixed</b>: Medications Administered</p></blockquote><blockquote><p><b>element</b></p><p><b>path</b>: Composition.section.code</p><p><b>min</b>: 1</p><p><b>pattern</b>: Medication administered Narrative <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://loinc.org/\">LOINC</a>#29549-3)</span></p></blockquote><blockquote><p><b>element</b></p><p><b>path</b>: Composition.section</p><p><b>sliceName</b>: plan</p></blockquote><blockquote><p><b>element</b></p><p><b>path</b>: Composition.section.title</p><p><b>min</b>: 1</p><p><b>fixed</b>: Discharge Treatment Plan</p></blockquote><blockquote><p><b>element</b></p><p><b>path</b>: Composition.section.code</p><p><b>min</b>: 1</p><p><b>pattern</b>: Plan of treatment (narrative) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://loinc.org/\">LOINC</a>#18776-5)</span></p></blockquote></blockquote></div>"
  },
  "url" : "http://hl7.org/fhir/StructureDefinition/example-section-library",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.5.1041"
  }],
  "name" : "DocumentSectionLibrary",
  "title" : "Document Section Library (For testing section templates)",
  "status" : "active",
  "experimental" : false,
  "date" : "2018-11-05T17:57:00+11:00",
  "kind" : "resource",
  "abstract" : true,
  "type" : "Composition",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Composition",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "id" : "Composition",
      "path" : "Composition"
    },
    {
      "id" : "Composition.section",
      "path" : "Composition.section",
      "slicing" : {
        "discriminator" : [{
          "type" : "pattern",
          "path" : "code"
        }],
        "description" : "Slice by .section.code when using this library of sections",
        "ordered" : true,
        "rules" : "closed"
      }
    },
    {
      "id" : "Composition.section:procedure",
      "path" : "Composition.section",
      "sliceName" : "procedure"
    },
    {
      "id" : "Composition.section:procedure.title",
      "path" : "Composition.section.title",
      "min" : 1,
      "fixedString" : "Procedures Performed"
    },
    {
      "id" : "Composition.section:procedure.code",
      "path" : "Composition.section.code",
      "min" : 1,
      "patternCodeableConcept" : {
        "coding" : [{
          "system" : "http://loinc.org",
          "code" : "29554-3",
          "display" : "Procedure Narrative"
        }]
      }
    },
    {
      "id" : "Composition.section:medications",
      "path" : "Composition.section",
      "sliceName" : "medications"
    },
    {
      "id" : "Composition.section:medications.title",
      "path" : "Composition.section.title",
      "min" : 1,
      "fixedString" : "Medications Administered"
    },
    {
      "id" : "Composition.section:medications.code",
      "path" : "Composition.section.code",
      "min" : 1,
      "patternCodeableConcept" : {
        "coding" : [{
          "system" : "http://loinc.org",
          "code" : "29549-3",
          "display" : "Medication administered Narrative"
        }]
      }
    },
    {
      "id" : "Composition.section:plan",
      "path" : "Composition.section",
      "sliceName" : "plan"
    },
    {
      "id" : "Composition.section:plan.title",
      "path" : "Composition.section.title",
      "min" : 1,
      "fixedString" : "Discharge Treatment Plan"
    },
    {
      "id" : "Composition.section:plan.code",
      "path" : "Composition.section.code",
      "min" : 1,
      "patternCodeableConcept" : {
        "coding" : [{
          "system" : "http://loinc.org",
          "code" : "18776-5",
          "display" : "Plan of treatment (narrative)"
        }]
      }
    }]
  }
}