# US Core FamilyMemberHistory Recorder Extension - US Core Implementation Guide v9.0.0

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **US Core FamilyMemberHistory Recorder Extension**

## Extension: US Core FamilyMemberHistory Recorder Extension 

| | | |
| :--- | :--- | :--- |
| *Official URL*:http://hl7.org/fhir/us/core/StructureDefinition/us-core-familymemberhistory-recorder | *Version*:9.0.0 | |
| * Standards status: *[Trial-use](http://hl7.org/fhir/R4/versions.html#std-process) | [Maturity Level](changes-between-versions.md#us-core-maturity-levels): 2 | *Computable Name*:USCoreFamilyMemberHistoryRecorderExtension |
| *Other Identifiers:*OID:2.16.840.1.113883.4.642.40.2.42.70 | | |

Individual who recorded the family member's health history and takes responsibility for its content. Because the recorder takes responsibility for accurately recording information in the record, the recorder is the most recent author. The recorder might or might not be the asserter.

**Context of Use**

The Patient Care WorkGroup has proposed a `.recorder` element in the FHIR R6 FamilyMemberHistory resource (see Jira issue FHIR-52911). After FHIR R6 is published, this extension will be replaced with the equivalent FHIR R6 [Cross Version Extension](http://hl7.org/fhir/R4/versions.html#extensions).

**Usage info**

**Usages:**

* Use this Extension: [US Core FamilyMemberHistory Profile](StructureDefinition-us-core-familymemberhistory.md)
* Examples for this Extension: [FamilyMemberHistory/familymemberhistory-example](FamilyMemberHistory-familymemberhistory-example.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/resource/hl7.fhir.us.core|current/StructureDefinition/StructureDefinition-us-core-familymemberhistory-recorder.json)

**Changes since version 8.0.1:**

* New Content

### Formal Views of Extension Content

 [Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#structure-definitions). 

 

Other representations of profile: [CSV](StructureDefinition-us-core-familymemberhistory-recorder.csv), [Excel](StructureDefinition-us-core-familymemberhistory-recorder.xlsx), [Schematron](StructureDefinition-us-core-familymemberhistory-recorder.sch) 

#### Constraints



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "us-core-familymemberhistory-recorder",
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 2
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "cgp"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "trial-use",
    "_valueCode" : {
      "extension" : [{
        "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
        "valueCanonical" : "http://hl7.org/fhir/us/core/ImplementationGuide/hl7.fhir.us.core"
      }]
    }
  }],
  "url" : "http://hl7.org/fhir/us/core/StructureDefinition/us-core-familymemberhistory-recorder",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.40.2.42.70"
  }],
  "version" : "9.0.0",
  "name" : "USCoreFamilyMemberHistoryRecorderExtension",
  "title" : "US Core FamilyMemberHistory Recorder Extension",
  "status" : "active",
  "date" : "2025-09-28",
  "publisher" : "HL7 International / Cross-Group Projects",
  "contact" : [{
    "name" : "HL7 International / Cross-Group Projects",
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/cgp"
    },
    {
      "system" : "email",
      "value" : "cgp@lists.HL7.org"
    }]
  }],
  "description" : "Individual who recorded the family member's health history and takes responsibility for its content. Because the recorder takes responsibility for accurately recording information in the record, the recorder is the most recent author. The recorder might or might not be the asserter.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "urn:iso:std:iso:3166",
      "code" : "US"
    }]
  }],
  "fhirVersion" : "4.0.1",
  "mapping" : [{
    "identity" : "rim",
    "uri" : "http://hl7.org/v3",
    "name" : "RIM Mapping"
  }],
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [{
    "type" : "element",
    "expression" : "FamilyMemberHistory"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "id" : "Extension",
      "path" : "Extension",
      "short" : "Who recorded family member's health history",
      "definition" : "Individual who recorded the family member's health history and takes responsibility for its content.",
      "comment" : "Because the recorder takes responsibility for accurately recording information in the record, the recorder is the most recent author. The recorder might or might not be the asserter.",
      "min" : 0,
      "max" : "1"
    },
    {
      "id" : "Extension.extension",
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "id" : "Extension.url",
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/us/core/StructureDefinition/us-core-familymemberhistory-recorder"
    },
    {
      "id" : "Extension.value[x]",
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "Reference",
        "targetProfile" : ["http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitioner",
        "http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitionerrole",
        "http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient",
        "http://hl7.org/fhir/us/core/StructureDefinition/us-core-relatedperson"]
      }],
      "mustSupport" : true
    }]
  }
}

```
