EN ISO 20737:2026

• Abstract:

  This document specifies interoperability requirements for personal health decision support (PHDS) services between actors in the PHDS environment, which include PHDS services, data providers, and PHDS clients. It includes requirements for data exchange, validation, and error handling among participants to support accurate and timely decision-making. It also describes the privacy and security considerations for PHDS. However, the specifics of how PHDS services are developed or implemented are not covered.

• Status: Not Published
• Publication Date: 01-Sep-2026
• ICS: 35.240.80 - IT applications in health care technology
• Technical Committee: CEN/TC 251 - Medical informatics
• Drafting Committee: CEN/TC 251/WG 2 - Terminology and knowledge representation
• Current Stage: 6055 - CEN Ratification completed (DOR) - Publishing
• Start Date: 20-Dec-2025
• Completion Date: 20-Dec-2025
• Ref Project: oSIST prEN ISO 20737:2025 - Health informatics - Interoperability of personal health decision support services (ISO/DIS 20737:2025)

• Referred By: EN ISO/ASTM 52933:2024 - Additive manufacturing - Environment, health and safety - Test method for the hazardous substances emitted from material extrusion type 3D printers in the non-industrial places (ISO/ASTM 52933:2024, Corrected version 2025-06)
• Effective Date: 28-Jan-2026
• Referred By: EN ISO 27548:2024 - Additive manufacturing of plastics - Environment, health, and safety - Test method for determination of particle and chemical emission rates from desktop material extrusion 3D printer (ISO 27548:2024)
• Effective Date: 28-Jan-2026
• Referred By: EN ISO 18562-3:2024 - Biocompatibility evaluation of breathing gas pathways in healthcare applications - Part 3: Tests for emissions of volatile organic substances (ISO 18562-3:2024)
• Effective Date: 28-Jan-2026
• Consolidated By: ISO 20737:2026 - Health informatics — Interoperability of personal health decision support services
• Effective Date: 12-Feb-2026

Overview

EN ISO 20737:2026, Health informatics - Interoperability of personal health decision support services sets out key interoperability requirements for personal health decision support (PHDS) services in healthcare IT environments. Published by CEN, this standard ensures that PHDS services, data providers, and PHDS clients can reliably exchange, validate, and process personal health data to enable accurate and timely self-care decision-making. Central to the standard are strict privacy and security controls, robust error handling, and semantic data alignment. While providing comprehensive interoperability guidance, this standard does not address specific implementation or development methods for PHDS solutions, allowing flexibility for diverse healthcare IT ecosystems.

Key Topics

• Interoperability Framework: EN ISO 20737:2026 identifies PHDS services, data providers, and PHDS clients as key actors. It specifies how these roles interact to acquire, process, and deliver decision support, based on explicit user consent.
• Data Exchange Requirements: Data must be exchanged using standardized APIs and formats, with mechanisms for validation, mapping, and transformation to support semantic interoperability.
• Consent and Authorization: All data flows must be authorized by the data owner. An authorization server manages identity verification, consent management, and access control.
• Privacy and Security: The standard mandates end-to-end encryption, access control (including role-based access control), audit logging, incident response protocols, and mechanisms for managing consent and supporting secure data deletion upon user request.
• Robust Error Handling: PHDS services must provide acknowledgements, error responses, and communication failure handling to ensure reliability.
• Metadata and Provenance: Data providers are required to transmit metadata, timestamps, and provenance information to ensure traceability, accuracy, and compliance.

Applications

EN ISO 20737:2026 has wide applicability in health informatics, supporting secure, interoperable personal health decision support at multiple levels:

• Self-care Facilitation: Enables individuals to make informed choices regarding treatment, disease management, understanding health risks, and adherence to care plans-based on trusted, up-to-date personal health data.
• Healthcare Provider Support: Assists healthcare professionals by integrating PHDS output into care workflows, ensuring that patient-reported and device-generated health data are accurately processed for decision support.
• Mobile Health Applications: Devices and apps (such as fitness trackers and digital health platforms) can leverage standardized PHDS interoperability for seamless and secure data sharing with external PHDS services.
• Patient Portals and EHR Integration: Supports integration of PHDS with electronic health records (EHR) and personal health records (PHR), promoting data portability and interoperability in line with standards like HL7 FHIR and HL7 CDA.
• Chronic Disease Management: Real-time data transfer and actionable feedback for patients dealing with long-term health conditions, enabling better self-management and communication with care teams.

Related Standards

EN ISO 20737:2026 aligns with broader health informatics and interoperability efforts, including:

• ISO 13606 (Electronic health record communication): Semantics and structure for EHR data exchange.
• ISO 22857 (Health informatics - Guidelines on protection of health information): Principles for personal health data privacy.
• HL7 FHIR and HL7 CDA: Standard data formats and APIs for health data exchange.
• ISO/IEC 24791-1 (Role-based access control in healthcare): Standards for secure, authorized data access.
• SNOMED CT, LOINC: Clinical terminologies to ensure semantic data interoperability.

By applying EN ISO 20737:2026, organizations across the health sector can foster patient empowerment, streamline data-driven decision support, and comply with recognized best practices for interoperability, security, and privacy in personal health informatics.