Interoperability

HEALTH POLICY BRIEF — Thursday, September 3

Today’s actionable work sits one layer below rulemaking: ONC has put terminology infrastructure into public hands, while HL7 has put a short…

Matt Reid

— 2 min read
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Executive Briefing

Today’s actionable work sits one layer below rulemaking: ONC has put terminology infrastructure into public hands, while HL7 has put a short standards-review clock in front of members. The practical test is whether better plumbing actually removes work from clinicians and practices—or merely makes the handoff of burden more elegant.

ONC: Cartos moves terminology testing into a public FHIR service. On September 1, ONC published Cartos, pairing a no-account terminology browser with a read-only FHIR R4 API for search, lookup, expansion, validation, and downloads. ONC points to implementation, certification readiness, interoperability testing, and terminology maintenance as intended uses. The catch matters: users must still follow each terminology steward’s licensing and redistribution rules, and some content may be limited or metadata-only. Policy relevance: Cartos could lower access and testing friction for implementers, but it is not an open-licensing shortcut. Physician policy angle: benefit depends on vendors using it to improve consistency without pushing more validation work onto practices. Monitor: have the interoperability and terminology lane spot-test coverage, API usability, and licensing metadata before the next certification or SVAP discussion, producing a short gap list for ONC engagement. ONC, “Cartos ONC’s Terminology Service,” September 1, 2026 (https://healthit.gov/standards-and-technology/cartos/).

HL7: the ballot reminder creates a deadline check, not a policy headline. HL7’s September 2 notice says most September-cycle ballots close September 14 and select ballots close September 21. The public post does not identify the artifacts, and the linked Ballot Desktop is members-only, so it would be premature to claim that a particular FHIR, prior-authorization, attachment, or terminology specification is up for a vote. Policy relevance: the fresh deadline detail creates a narrow coordination window; physician relevance must be established ballot by ballot. Coordinate: ask the HL7 standards owner today to export the open-ballot list, flag physician-relevant artifacts, assign reviewers, and decide on comments or votes before the applicable deadline—then close the item if nothing relevant is open. HL7 International, official ballot-cycle notice, September 2, 2026 (https://x.com/HL7/status/2095211719337390578); HL7 Ballot Desktop (https://www.hl7.org/BallotDesktop/index.cfm?view=home).

Policy Action Implications

  • Put the HL7 ballot inventory first: the September 14 deadline is close, while the relevant artifacts are not publicly visible.
  • Use Cartos as a targeted implementation test, with special attention to licensing metadata and whether vendor-facing simplification translates into less practice work.
  • Hold CPT posture steady unless one of the named legal, congressional, payer, or standards triggers appears.

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