The 2026 ISA: ONC Drops a Catalog, Founders Should Read It Like a Term Sheet

Key Takeaways

• ISA serves as regulatory substrate for health data standards
• USCDI v7 draft adds 30 new data elements
• HTI-5 shifts certification to FHIR-first approach
• Imaging RFI opens discussion on DICOM interoperability
• Entrepreneurs can reference ISA for contracts and funding

Summary

The Office of the National Coordinator released the 2026 Interoperability Standards Advisory (ISA), a stable catalog that maps health‑data standards to use cases. It arrives alongside a draft USCDI v7 adding 30 new data elements, the HTI‑5 rule pushing a FHIR‑first certification model, and a diagnostic imaging RFI targeting DICOM interoperability. The ISA does not mandate implementation, but it defines the vocabulary that underpins ONC certification, payer rules, and TEFCA participation. For health‑tech founders, the catalog serves as a de‑facto term sheet for contracts, grants, and product roadmaps.

Pulse Analysis

The 2026 Interoperability Standards Advisory marks a watershed for health‑tech firms navigating a fragmented standards landscape. By consolidating more than sixty standards—ranging from FHIR and HL7 v2 to SNOMED, LOINC, and DICOM—the ISA offers a single reference point that aligns with ONC certification criteria, payer data‑exchange mandates, and the emerging TEFCA framework. Startups can now cite the ISA in partnership agreements and grant proposals, reducing legal uncertainty and accelerating time‑to‑market for data‑driven solutions.

Concurrently, the draft USCDI v7 and the HTI‑5 proposed rule reshape the data floor and ceiling. USCDI v7’s 30 additional elements raise the baseline of required clinical data, while HTI‑5’s FHIR‑first approach deregulates the certification process, encouraging developers to adopt modern APIs over legacy HL7 messages. This dual pressure pushes vendors toward more flexible, patient‑centric architectures and opens new revenue streams for companies that can translate raw clinical data into interoperable, actionable formats.

Imaging remains the last frontier, with ONC’s RFI signaling a willingness to modernize DICOM exchange. As hospitals grapple with decades‑old PACS silos, the potential for standardized, API‑based imaging data could unlock tele‑radiology, AI diagnostics, and cross‑institution research collaborations. Investors are watching these policy shifts closely, betting on platforms that can bridge the gap between legacy imaging workflows and the interoperable ecosystem the ISA now codifies.