HSAAP Special Authority FHIR Implementation Guide
0.1.1 - draft New Zealand flag

HSAAP Special Authority FHIR Implementation Guide - Local Development build (v0.1.1) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

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Official URL: https://fhir-ig.digital.health.nz/special-authority/ImplementationGuide/tewhatuora.specialauthority Version: 0.1.1
Draft as of 2026-10-16 Computable Name: HSAAP Special Authority FHIR Implementation Guide

Introduction

This Implementation Guide defines the HSAAP Special Authority sector facing FHIR API. It allows Practice Management Systems (PMS), the SOAP to FHIR Broker, the Special Authority application in the Population Health Salesforce org, and any future FHIR-native sector client to:

  • submit Special Authority Applications, and
  • enquire on existing Special Authority Applications and Approvals.

The API is hosted in MuleSoft, which validates each request against the profiles in this guide, translates it to the RESTful API of the special-authority-application-service, and translates the response back into FHIR. The special-authority-application-service neither produces nor consumes FHIR.

Draft. This guide is under active development and is derived from HSAAP Special Authority - Sector Facing APIs Detailed Design v0.8.1. Several elements of that design could not be represented exactly in FHIR R4; each departure is listed on the Design Notes and Open Issues page.

Resource model

A Special Authority Application is, in FHIR's own terms, a request for authorisation of funded goods in advance of their supply, and is therefore modelled as a Claim with use = preauthorization. The clinical criteria and their answers are carried as a QuestionnaireResponse, not as an encoded string. The outcome, and any resulting Approval, is a ClaimResponse: preAuthRef and preAuthPeriod carry the Approval Number and its effective and expiry dates.

Da Vinci Prior Authorization Support is used as a pattern reference only. Its US-specific terminology bindings and X12 assumptions are not adopted.

Resource Profile Derived from Role
Bundle SA Submission Bundle Bundle Request body of Claim/$submit
Claim SA Claim Claim The Application
QuestionnaireResponse SA QuestionnaireResponse QuestionnaireResponse Clinical criteria and answers
Questionnaire SA Questionnaire Questionnaire Constraints on the form canonical (not published in Phase 1)
Patient SA Patient NZ Base NzPatient The patient (NHI)
Practitioner SA Practitioner NZ Base NzPractitioner Applicant and Referrer
Organization SA Organization NZ Base NzOrganization Submitting practice or facility
Bundle SA Response Bundle Bundle Response from Claim/$submit
ClaimResponse SA Application ClaimResponse ClaimResponse Application status and outcome
ClaimResponse SA Approval ClaimResponse ClaimResponse An Approval
OperationOutcome SA Outcome OperationOutcome OperationOutcome The single business outcome

Monetary amounts are never present on a Special Authority Application or Approval. The financial elements of Claim and ClaimResponse are constrained out rather than left unused and optional.

API summary

Interaction Request
Submit Application POST [base]/Claim/$submit
Retrieve a submitted Application GET [base]/Claim?identifier=...&_include=...
Retrieve Application Outcome GET [base]/ClaimResponse?request.identifier=...
Search Applications GET [base]/Claim?...
Retrieve / Search Approvals GET [base]/ClaimResponse?...

The full API is described by the HSAAP Special Authority FHIR API CapabilityStatement.

Scope

In scope: the FHIR profiles, extensions, search parameters and operation used by the sector facing API; the rules a submitter must follow; and how outcomes are rendered.

Out of scope: business rule content and rule evaluation sequence (Application Decisioning design); HL7 v2 to FHIR translation (SOAP to FHIR Broker); decisioning; the Application Store, Approval/Entitlement Store and Pharmaceutical Schedule internal APIs; and authentication and authorisation mechanics (Security design), which are summarised on Security, Onboarding and Auditing.

Dependencies

IGPackageFHIRComment
HSAAP Special Authority FHIR Implementation Guidetewhatuora.specialauthority#0.1.1R4
HSAAP Special Authority FHIR Implementation Guide / HL7 Terminology (THO)hl7.terminology.r4#7.4.0R4Automatically added as a dependency - all IGs depend on HL7 Terminology
HSAAP Special Authority FHIR Implementation Guide / FHIR Extensions Packhl7.fhir.uv.extensions.r4#5.3.0R4Automatically added as a dependency - all IGs depend on the HL7 Extension Pack
HSAAP Special Authority FHIR Implementation Guide / HL7® FHIR® New Zealand Base Implementation Guidefhir.org.nz.ig.base#3.1.0R4
HSAAP Special Authority FHIR Implementation Guide / HL7® FHIR® New Zealand Base Implementation Guide / HL7 Terminology (THO)hl7.terminology.r4#7.2.0R4
HSAAP Special Authority FHIR Implementation Guide / Digital Tooling Implementation Guidetewhatuora.digitaltooling#0.0.11R4
HSAAP Special Authority FHIR Implementation Guide / Digital Tooling Implementation Guide / FHIR Extensions Packhl7.fhir.uv.extensions.r4#5.1.0R4
HSAAP Special Authority FHIR Implementation Guide / Digital Tooling Implementation Guide / HL7 Terminology (THO)hl7.terminology.r4#5.5.0R4
HSAAP Special Authority FHIR Implementation Guide / FHIR Tooling Extensions IGhl7.fhir.uv.tools.r4#1.3.0R4for example references

Package hl7.fhir.uv.extensions.r4#5.3.0

This IG defines the global extensions - the ones defined for everyone. These extensions are always in scope wherever FHIR is being used (built Sat, May 16, 2026 18:32+1000+10:00)

Package fhir.org.nz.ig.base#3.1.0

New Zealand base profiles (built Fri, Jul 24, 2026 15:52+1200+12:00)

Package hl7.fhir.uv.extensions.r4#5.1.0

This IG defines the global extensions - the ones defined for everyone. These extensions are always in scope wherever FHIR is being used (built Sat, Apr 27, 2024 18:39+1000+10:00)

Package tewhatuora.digitaltooling#0.0.11

FHIR profiles used in FHIR Publishing processes within Health New Zealand Te Whatu Ora (built Wed, Aug 28, 2024 21:00+0000+00:00)

Package hl7.fhir.uv.tools.r4#1.3.0

This IG defines the extensions that the tools use internally. Some of these extensions are content that are being evaluated for elevation into the main spec, and others are tooling concerns (built Tue, Oct 6, 2026 15:55+1100+11:00)

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