Name Flags Card. Type Description & Constraints doco
. . Extension 0..1
. . . url "http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex"
. . . valueCode 0..1 code Binding: US Core Birth Sex Value Set (required)

doco Documentation for this format
<status value="draft" /> <date value="2016-08-01" /> <publisher value="HL7 US Realm Steering Committee" /> <contact> <telecom> <system value="url" /> <value value="http://www.healthit.gov" /> </telecom> </contact> <description value="A code classifying the person's sex assigned at birth as specified by the [Office of the National Coordinator for Health IT (ONC)](https://www.healthit.gov/newsroom/about-onc). This extension aligns with the C-CDA Birth Sex Observation (LOINC 76689-9)." /> <fhirVersion value="3.1.0" /> <mapping> <identity value="rim" /> <uri value="http://hl7.org/v3" /> <name value="RIM Mapping" /> </mapping> <kind value="complex-type" /> <abstract value="false" /> <contextType value="resource" /> <context value="Patient" /> <type value="Extension" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" /> <derivation value="constraint" /> <differential> <element id="Extension:birthsex"> <path value="Extension" /> <sliceName value="birthsex" /> <definition value="A code classifying the person's sex assigned at birth as specified by the [Office of the National Coordinator for Health IT (ONC)](https://www.healthit.gov/newsroom/about-onc)." /> <comment value="The codes required are intended to present birth sex (i.e., the sex recorded on the patient’s birth certificate) and not gender identity or reassigned sex." /> <min value="0" /> <max value="1" /> <isModifier value="false" /> <mapping> <identity value="rim" /> <map value="player[classCode=PSN|ANM and determinerCode=INSTANCE]/administrativeGender" /> </mapping> <mapping> <identity value="iso11179" /> <map value=".patient.administrativeGenderCode" /> </mapping> </element> <element id="Extension:birthsex.url"> <path value="Extension.url" /> <fixedUri value="http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex" /> </element> <element id="Extension:birthsex.valueCode"> <path value="Extension.valueCode" /> <min value="0" /> <max value="1" /> <type> <code value="code" /> </type> <binding> <strength value="required" /> <description value="Code for sex assigned at birth" /> <valueSetReference> <reference value="http://hl7.org/fhir/us/core/ValueSet/us-core-birthsex" /> </valueSetReference> </binding> </element> </differential> </StructureDefinition>