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BlockInterop

Service

HL7 Interface Development

HL7 v2 still carries the majority of clinical traffic. We design, tune, and support interfaces that stay reliable under real operational load.

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What we deliver

  • ADT, ORM, ORU, SIU, DFT, and MDM interface builds
  • Interface engine configuration and channel design
  • Message mapping, transformation, and validation rules
  • Monitoring, alerting, and error-handling frameworks
  • Cutover planning and go-live support

Outcomes you can expect

Stable, observable interfaces with fewer production surprises
Faster onboarding of new sites and trading partners
Documented mappings your team can maintain

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Answers

Questions We Get About This Work

Direct answers, written to stand on their own.

What is the difference between FHIR and HL7 v2?

HL7 v2 is a message-based standard that pushes events such as admissions, orders, and results between systems over interface engines. FHIR is a resource-based standard that exposes data through RESTful APIs so applications can request exactly what they need. Most organizations run both: HL7 v2 continues to carry high-volume clinical event traffic while FHIR supports apps, partner APIs, and regulatory requirements.

  • HL7 v2 strengths: mature, event-driven, high throughput, deeply embedded in existing clinical operations.
  • FHIR strengths: API access, granular queries, app launch through SMART on FHIR, and regulatory alignment.
  • The decision depends on workflow, latency, partner capability, and who will operate the integration.
  • Migration is usually incremental, with FHIR added alongside existing v2 interfaces rather than replacing them.
HL7 Interface DevelopmentFHIR and API Implementation

What is healthcare interoperability?

Healthcare interoperability is the ability of different health IT systems to exchange data and use it in a shared, meaningful way. In practice it combines data standards such as HL7 v2 and FHIR, secure APIs and network participation, governance and consent rules, and workflow design so the data arrives where a clinician, member service representative, or research coordinator can act on it.

  • Standards layer: HL7 v2 messaging, FHIR resources and profiles such as US Core, and document exchange.
  • Transport layer: APIs, interface engines, and network participation such as TEFCA and QHIN connectivity.
  • Governance layer: identity, consent, exchange purpose, data stewardship, and audit.
  • Workflow layer: getting the right data into the screen and moment where a decision is made.
FHIR and API ImplementationInteroperability Strategy and Advisory

What are TEFCA and a QHIN?

TEFCA, the Trusted Exchange Framework and Common Agreement, is the United States framework that creates a common legal and technical basis for nationwide health information exchange. A QHIN, or Qualified Health Information Network, is a network designated under that framework that connects participants to each other for defined exchange purposes. Organizations join nationwide exchange by participating through a QHIN rather than by negotiating point-to-point agreements with every partner.

  • Participation involves technical connectivity, legal agreements, and operational support commitments.
  • Exchange purposes and consent handling shape what data may flow and for what use.
  • Readiness work covers QHIN selection criteria, onboarding, connectivity testing, and runbooks.
  • TEFCA participation complements, rather than replaces, existing HL7 and FHIR integrations.
TEFCA and QHIN Readiness

Not Sure Where to Start?

Schedule a focused conversation to identify your interoperability priorities, risks, dependencies, and most practical next steps.

Talk With an Interoperability Expert
Book an Interoperability Strategy Call

Ready to Move Interoperability Forward?

Whether you are preparing for new CMS requirements, modernizing healthcare integrations, connecting to a QHIN, or building a FHIR-enabled product, BlockInterop can help you define the right path and execute it.

Book an Interoperability Strategy CallContact BlockInterop

Tell us about your organization, current challenge, timeline, and desired outcome.