{
  "resourceType": "StructureDefinition",
  "id": "observation-geneticsAllelicFrequency",
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "oo"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1
    }
  ],
  "url": "http://hl7.org/fhir/StructureDefinition/observation-geneticsAllelicFrequency",
  "name": "AllelicFrequency",
  "status": "draft",
  "date": "2016-03-14",
  "publisher": "Health Level Seven International (Clinical Genomics)",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/clingenomics"
        }
      ]
    }
  ],
  "description": "A physical quality which inheres to the allele by virtue of the number instances of the allele within a population. LOINC Code: ([81258-6](http://loinc.org/81258-6)).",
  "fhirVersion": "3.0.1",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "contextType": "resource",
  "context": [
    "Observation"
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Allele frequency",
        "definition": "A physical quality which inheres to the allele by virtue of the number instances of the allele within a population. LOINC Code: ([81258-6](http://loinc.org/81258-6)).",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/observation-geneticsAllelicFrequency"
      },
      {
        "id": "Extension.valueDecimal",
        "path": "Extension.valueDecimal",
        "type": [
          {
            "code": "decimal"
          }
        ]
      }
    ]
  }
}