US Core Patient Profile (US Core 6.1.0)

US Core Patient Profile is a US Core 6.1.0 profile on the FHIR R4 Patient resource. It marks 17 elements as must-support; the rows below list each constrained element's cardinality and binding strength.

Profile	us-core-patient
Implementation Guide	US Core 6.1.0
Base resource	Patient
Canonical URL	http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient
Must-support elements	17
Constrained elements with bindings	6
Patient.identifier	1..* (base 0..*), must support
Patient.identifier.system	1..1 (base 0..1), must support
Patient.identifier.value	1..1 (base 0..1), must support
Patient.name	1..* (base 0..*), must support
Patient.name.family	0..1, must support
Patient.name.given	0..*, must support
Patient.telecom.system	1..1, must support, binding: required
Patient.telecom.value	1..1, must support
Patient.telecom.use	0..1, must support, binding: required
Patient.gender	1..1 (base 0..1), must support, binding: required
Patient.birthDate	0..1, must support
Patient.address	0..*, must support
Patient.address.line	0..*, must support
Patient.address.city	0..1, must support
Patient.address.state	0..1, must support, binding: extensible
Patient.address.postalCode	0..1, must support
Patient.communication.language	1..1, must support, binding: extensible
Patient.link.other	1..1
Patient.link.type	1..1, binding: required

Example

pidgeon data install fhir-us-core-6.0
pidgeon conform --endpoint https://your-fhir-base/fhir --ig us-core-6.0 --ci

The conform run walks the live endpoint and grades sampled resources against the installed US Core profiles. A failed report exits non-zero; --ci also fails the run on must-support gaps (MUSTSUPPORT-*) and stub-profile fallbacks (CONFORM_STUB_PROFILE).

Validation context

strict Profile validation grades an instance against this profile's snapshot: cardinality findings carry FHIR-PROFILE-CARDINALITY and terminology binding findings carry FHIR-PROFILE-BINDING.(FHIR-PROFILE-CARDINALITY)
strict Under pidgeon conform --ci, a sampled resource missing one of this profile's must-support elements fails the run with a MUSTSUPPORT-<element> rule id.
strict If the fhir-us-core-6.0 package is not installed, validation falls back to an embedded subset stub and the report is flagged CONFORM_STUB_PROFILE; under --ci that warning fails the run.(CONFORM_STUB_PROFILE)

This answer, in your terminal

pidgeon conform --endpoint https://your-fhir-base/fhir --ig us-core-6.0 --ci

Wire it into your AI agent:

claude mcp add pidgeon -- npx -y @pidgeonhealth/mcp

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