Giang Huynh developed a New Zealand-specific Pharmacy Claim Response FHIR profile for the tewhatuora/cinc-fhir-ig repository, focusing on healthcare interoperability and regulatory alignment. The work involved designing a reusable ProductOrService extension to attach product or service codes to claim items, supporting accurate claim adjudication and streamlined integration with local providers and payers. Giang applied expertise in FHIR, data modeling, and healthcare data standards, using FSH to define value sets, adjudication logic, and extensible schema elements. The implementation emphasized maintainability and standards compliance, resulting in a robust, extensible solution that reduces future rework and improves compatibility across New Zealand’s healthcare ecosystem.