R5 is the newest FHIR release, and most integrations still run R4. That gap is where teams have to keep…
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R4 vs R5: The Resources That Changed Enough to Notice
Must-Support Elements and What Implementers Actually Do
Must-Support is the FHIR concept most often misread as "required." It is not. It is a signal to implementers that…
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The Extension Model: When a FHIR Resource Is Silent on Your Data
Every FHIR resource has fields the spec author picked. Every implementation has data the spec author did not pick. The…
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Profiles and Slicing at a Glance
FHIR profiles are how one resource type serves many implementation contexts. US Core Patient, International Patient Summary, and CARIN Blue…
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Reference vs Contained: When to Embed and When to Link
FHIR R4 gives two ways to connect one resource to another. Reference points at a resource by URL or logical…
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Top 5 MPI Engines for Payer-Driven Patient Reconciliation in 2026
Payer-driven patient reconciliation has become a distinct MPI workload in 2026. CMS interoperability rules pushed payers into FHIR exchange, and…
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The Ten FHIR Resources You Should Learn First
FHIR R4 lists around one hundred forty resource types. A working knowledge of ten of them covers the vast majority…
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Navigating FHIR R4 Resources When You Know DomainResource But Not Much Else
A developer who has skimmed the FHIR overview knows two things: there is a base class called Resource, and there…
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Top 5 FHIR Questionnaire Engines for Surgical Pre-Op Intake
Surgical pre-op intake sits at the intersection of clinical risk, regulatory consent, and procedural scheduling. The Questionnaire is longer than…
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Top 5 HL7 v2 to FHIR Conversion Engines for US Hospitals
HL7 v2 messaging is still the backbone of intra-hospital clinical communication in 2026, and the path from v2 to FHIR…
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