Vital Records Common Library (VRCL) FHIR Implementation Guide
2.0.0 - STU2-CI Build United States of America flag

Vital Records Common Library (VRCL) FHIR Implementation Guide, published by HL7 International / Public Health. This guide is not an authorized publication; it is the continuous build for version 2.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/vr-common-library/ and changes regularly. See the Directory of published versions

Extension: City Code Vital Records

Official URL: http://hl7.org/fhir/us/vr-common-library/StructureDefinition/CityCode Version: 2.0.0
Active as of 2026-10-16 Computable Name: ExtensionCityCodeVitalRecords

City expressed as a numeric value. As of the date of publication, in accordance with the NCHS Instruction Manual Part 8, Vital Records Geographic Classification, 2014 (https://www.cdc.gov/nchs/data/dvs/IMP8_2014.pdf). (Extension)

Context of Use

    This extension may be used on the following element(s)

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description Differentials, Snapshots, and other representations.

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension City Code Vital Records
Extension.extension 0..0 Extension
Extension.url 1..1 uri "http://hl7.org/fhir/us/vr-common-library/StructureDefinition/CityCode"
Extension.value[x] 1..1 positiveInt Value of extension
Max Length:5

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension City Code Vital Records
Extension.id 0..1 string Unique id for inter-element referencing
Extension.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.url 1..1 uri "http://hl7.org/fhir/us/vr-common-library/StructureDefinition/CityCode"
Extension.value[x] 1..1 positiveInt Value of extension
Max Length:5

doco Documentation for this format

Constraints

Id Grade Path(s) Description Expression

This structure is derived from Extension

Summary

Simple Extension with the type positiveInt: City expressed as a numeric value. As of the date of publication, in accordance with the NCHS Instruction Manual Part 8, Vital Records Geographic Classification, 2014 (https://www.cdc.gov/nchs/data/dvs/IMP8_2014.pdf). (Extension)

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension City Code Vital Records
Extension.extension 0..0 Extension
Extension.url 1..1 uri "http://hl7.org/fhir/us/vr-common-library/StructureDefinition/CityCode"
Extension.value[x] 1..1 positiveInt Value of extension
Max Length:5

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension City Code Vital Records
Extension.id 0..1 string Unique id for inter-element referencing
Extension.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.url 1..1 uri "http://hl7.org/fhir/us/vr-common-library/StructureDefinition/CityCode"
Extension.value[x] 1..1 positiveInt Value of extension
Max Length:5

doco Documentation for this format

Constraints

Id Grade Path(s) Description Expression

This structure is derived from Extension

Summary

Simple Extension with the type positiveInt: City expressed as a numeric value. As of the date of publication, in accordance with the NCHS Instruction Manual Part 8, Vital Records Geographic Classification, 2014 (https://www.cdc.gov/nchs/data/dvs/IMP8_2014.pdf). (Extension)

 

Other representations of profile: CSV, Excel, Schematron