By: Tone Southerland
Executive Summary
This week, healthcare technology leaders gathered for the 40th Annual HL7 Plenary & Working Group Meeting (WGM) and the 43rd HL7 FHIR Connectathon. Connectathons serve as a crucial hands-on testing ground where systems validate FHIR transactions, stress-test profiles, and refine interoperability standards.
For HealthLX, this event represented a vital milestone ahead of major regulatory deadlines. Below, we break down our testing highlights, key engineering takeaways, and what lies ahead for healthcare interoperability.
The Regulatory Horizon: Why This Connectathon Matters
The API requirements in the CMS Interoperability and Prior Authorization Final Rule (CMS-0057-F) take effect January 1, 2027. By then, Medicare Advantage organizations, state Medicaid and CHIP programs and their managed care plans, and QHP issuers on the federally facilitated exchanges must have four APIs in production: Patient Access, Provider Access, Payer-to-Payer, and Prior Authorization
With about 100 days to go, this was the last HL7 Connectathon before the deadline. That made it the final chance to validate end-to-end workflows across the recommended Da Vinci implementation guides with the EHRs, intermediaries, and payers that will depend on them.
Testing in Action: The Da Vinci Burden Reduction Track
During the weekend of the Connectathon, the Burden Reduction track hosted four dedicated testing tables. Highlights from the track include:
- 23 unique participating organizations testing collaborative interoperability workflows.
- 50 participant-organized test scenarios executed across various clinical and payer architectures.
- Of the participating organizations, 39% were Clients (EHR/Provider), 52% were Servers (health plans/intermediaries/utilization management systems), and 9% were test tools.
HealthLX Hands-On Participation
Over two intensive days, HealthLX successfully tested with 6 distinct systems, all acting in the role of an EHR system and/or SMART Health App. Some of these were test tools such as Aegis Touchstone.
Our primary focus was to verify three core Da Vinci Burden Reduction implementation guides against our cloud implementation:
- Coverage Requirements Discovery (CRD): Streamlining payer coverage rules at the point of care.
- Documentation Templates and Rules (DTR): Automating required documentation retrieval directly from the EHR.
- Prior Authorization Support (PAS): Standardizing and expediting prior authorization requests and responses.
Key Takeaways & Engineering Insights
- Seamless Security Testing
Every security flow performed as expected: CDS Hooks JWT authentication for CRD, SMART App Launch and Backend Services for DTR, and OAuth-based system-to-system authorization for PAS. - Uncovering Edge Cases Early
The core value of Connectathon events is surfacing unexpected behavior. During testing, we identified key system refinements around how client systems transmit FHIR contained Resources. Spotting and resolving these nuances now ensures smoother implementations for our client partners. - Managing Workflow Complexity
While individual FHIR transactions are maturing, multi-system workflows spanning EHRs, payers, and third-party tools remain intricate. The industry must continue prioritizing robust, end-to-end workflow testing alongside isolated protocol validation.
Looking Ahead
There has been a steady and, more recently, rapid increase in the number of testing participants at Burden Reduction Connectathons. This is positive news for impacted health plans. It means that vendors across the ecosystem are getting ready and testing as close to real-world scenarios as possible.
As the January 1, 2027 deadline approaches, testing and refining interoperability solutions will continue to be a top priority. HealthLX remains committed to working alongside industry partners, standards bodies, and healthcare organizations to streamline prior authorization and elevate patient care.