Which of the following describes how FHIR can be adapted to local requirements?

• A. Profiles
• B. All of the above
• C. Extensions
• D. Terminologies

Answer: (B)

FHIR can be adapted to local requirements through several mechanisms that work together to tailor data and workflows: profiles, extensions, and terminologies.

Profiles constrain and tailor resources to local needs by specifying which elements are required, allowable values, cardinalities, and how data should be represented. This ensures that data exchanged fits the local use case while remaining interoperable with other systems.

Extensions provide a safe way to add data elements that aren’t already defined in the base resources. By defining named extensions with clear data types and governance, systems can capture locally relevant information without altering the standard resource structure.

Terminologies, including value sets and code systems, enable consistent coding and interpretation of data. Binding elements to standardized or locally defined vocabularies ensures that codes convey the same meaning across systems, while still allowing local variations when necessary.

In practice, you often combine these approaches: a profile constrains data to local requirements, extensions cover gaps, and standardized terminologies ensure consistent interpretation. That’s why all of the above describes how FHIR can be adapted to local requirements.