Overview - ISO/TR 12310:2015 (Health informatics)
ISO/TR 12310:2015 provides a framework of principles and good practices for measuring and demonstrating conformance in the implementation and maintenance of health terminological systems. While its primary focus is on the application of terminology systems within Electronic Health Record (EHR) environments, the guidance applies broadly across health informatics implementations that rely on coded clinical content. The report aims to help organizations define measurable expectations so implementations can be tested, compared and governed to support interoperability and reliable clinical data use.
Key topics and technical requirements
ISO/TR 12310:2015 organizes guidance around practical conformance concerns and includes the following technical topics:
- Purposes for conformance: interoperability, data analysis, consistent user experience, application functionality and acceptance filtering.
- Conformance process: documenting expectations, handling optionality, asserting and verifying conformance statements.
- Terminology artefact considerations: code system identity, supported versions, code representation, version migration, authoritative update sources, element status and semantics, relationships, partitions and supplements.
- Reference sets and bindings: definition of allowed code sets, representation constraints, extensibility, static vs dynamic bindings, and where/when bindings apply.
- Terminology usage: data capture (presentation, navigation, deprecation handling), data exchange (identifying code systems and versions, post-coordination syntax, translations, original text), and data analysis/searching (subsumption, mathematical support, cross-system analysis, unknown data).
- Conformance lifecycle: sharing/persisting expectations, evaluating and verifying conformance, automation possibilities, IP considerations, and supporting terminology services.
These topics form a basis for measurable conformance statements and practical verification strategies.
Practical applications and users
This Technical Report is intended for:
- EHR vendors and implementers designing coded data capture, storage and exchange.
- Health IT architects and interoperability teams responsible for terminology governance and version management.
- Clinical terminologists and informaticians defining reference sets, bindings and post-coordination rules.
- Policy makers and health organizations creating national or local terminology conformance policies.
Use cases include validating EHR terminology implementations, defining acceptance criteria for terminology updates, ensuring consistent code usage for analytics and decision support, and documenting conformance for procurement or certification.
Related standards and organizations
- IHTSDO (SNOMED CT) and HL7 (Vocabulary Committee) are cited collaborators; guidance is intended to harmonize with existing terminology work.
- Use alongside messaging and EHR standards that reference terminologies to achieve end-to-end interoperability.
Keywords: ISO/TR 12310:2015, health informatics, conformance, terminological systems, EHR, interoperability, code system, reference set, terminology governance.