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VA Technical Reference Model v 26.1

HL7 Clinical Decision Support (CDS) Hooks
HL7 Clinical Decision Support (CDS) Hooks Standard or Specification

General Information

Technologies must be operated and maintained in accordance with Federal and Department security and privacy policies and guidelines. More information on the proper use of the TRM can be found on the TRM Proper Use Tab/Section.

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Description: The CDS Hooks specification describes the RESTful APIs and interactions to integrate Clinical Decision Support (CDS) between CDS Clients (typically Electronic Health Record Systems (EHRs) or other health information systems) and CDS Services. It describes a hook-based pattern for invoking decision support from within a clinician`s workflow. The API supports:

- Synchronous, workflow-triggered CDS calls returning information and suggestions
- Launching a user-facing SMART app when CDS requires additional interaction

See reference to HL7 CDS Hooks Library for specification of industry standardized clinical workflow steps used by systems conforming to this guide. While changes to this guide become infrequent and tightly constrained, new hooks will continue to be specified and matured in the library.
Technology/Standard Usage Requirements: Users must ensure their use of this technology/standard is consistent with VA policies and standards, including, but not limited to, VA Handbooks 6102 and 6500; VA Directives 6004, 6513, and 6517; and National Institute of Standards and Technology (NIST) standards, including Federal Information Processing Standards (FIPS). Users must ensure sensitive data is properly protected in compliance with all VA regulations. Prior to use of this technology, users should check with their supervisor, Information System Security Officer (ISSO), Facility Chief Information Officer (CIO), or local Office of Information and Technology (OI&T) representative to ensure that all actions are consistent with current VA policies and procedures prior to implementation.
Section 508 Information:
Decision: View Decisions
Decision Source: TRM Mgmt Group
Decision Process: One-VA TRM v25.6
Decision Date: 06/11/2025 at 03:27:55 UTC
Aliases: HL7 FHIR Implementation Guide: CDS Hooks; Hook Library, Release 1, HL7 CDS Hooks, R1, CDS Hooks
Introduced By: TRM Request
Standards Body: HL7
Cage Code: 3ZPX5
- The information contained on this page is accurate as of the Decision Date (06/11/2025 at 03:27:55 UTC).