haau3 FHIR Implementation Guide (HFIG)
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haau3 FHIR Implementation Guide (HFIG), published by haau3. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/haau3/fhir-ig/ and changes regularly. See the Directory of published versions

Artifacts Summary

This page provides a list of the FHIR artifacts defined as part of this implementation guide.

Structures: Resource Profiles

These define constraints on FHIR resources for systems conforming to this implementation guide.

CareTeam

A group of individuals, both formal healthcare professionals and informal family and friends, that provide care for an individual patient.

Coverage

Coverage information for haau3, primarily sourced from CARIN Blue Button / Blue Button APIs and payer feeds. Builds on US Core Coverage and is designed to stay aligned with Da Vinci use cases (e.g., payer-to-payer, member data sharing) over time.

Organization

Organizations relevant to haau3, including payers, providers, and plan sponsors imported from Blue Button / payer APIs.

Patient

A care recipient.

Patient Shared DocumentReference

A DocumentReference representing a patient-shared health summary PDF.

This profile is used within the SHL Bundle to represent the human-readable summary that a patient chooses to share. The document is embedded directly in the resource as a base64-encoded PDF.

The Patient is both the subject of the document and one of the authors, reflecting patient-mediated sharing of health information.

This profile aligns with the CMS Kill the Clipboard PatientSharedDocumentReference pattern and is intended to support portable, patient-directed exchange.

Person

An individual who manages care for one or more patients, but can also manage their own care.

Practitioner

An individual healthcare professional / practitioner that formally provides care for a patient.

Questionnaire

A questionnaire or form

Questionnaire Response

An individual's response to a questionnaire/form.

Related Person

Individuals related to the patient like caregivers, family members, or guardians.

SHL Bundle

A FHIR Bundle containing the patient summary, DocumentReference with the PDF, and optional FHIR resources a patient wants to share. This aligns with the CMS Kill The Clipboard Spec.

Terminology: Code Systems

These define new code systems used by systems conforming to this implementation guide.

haau3 Enrichment Tags

Tags indicating that haau3 has enriched or derived data based on external knowledge or processing.

haau3 Source System Codes

Codes that indicate which source system a resource or data element originated from (e.g., Blue Button, Epic).

Terminology: Naming Systems

These define identifier and/or code system identities used by systems conforming to this implementation guide.

Clerk identifier for an haau3 user

Stable Clerk user id for haau3 users. Used only on Person resources.

Epic patient MRN

Epic MRN identifier namespace.

Epic patient identifier

Patient identifiers assigned by Epic systems (MyChart, Epic FHIR).

haau3 coverage identifier

Stable haau3 coverage id used for normalized Coverage.identifier.system. Format: {payorCode}-{group}-{plan}-{subscriberId}.

haau3 patient identifier

Stable haau3 patient id. Used on Patient.identifier only.

Example: Example Instances

These are example instances that show what data produced and consumed by systems conforming with this implementation guide might look like.

Coverage: Medicare Part C

Example CMS Medicare Advantage (Part C) coverage imported from Blue Button, normalized with a haau3 coverage identifier and tagged with source-system and enrichment metadata.

GOFSH-GENERATED-ID-0
Organization: Centers for Medicare & Medicaid Services

Centers for Medicare & Medicaid Services (CMS) as the payer/administrator for Medicare fee-for-service. Seeded as a canonical payer organization in haau3.

Patient: Grandma Fung

Example haau3 patient with required canonical identifier.

Questionnaire: Patient Demographics

Example questionnaire for patient demographics

RelatedPerson: Brian Fung as a caregiver

Example RelatedPerson representing Brian, caring for Grandma Fung as her grandchild.

haau3-shl-bundle