Blog

Healthcare implementation, testing, and interoperability.

Technical guides on X12 EDI, HL7 v2, FHIR, go-live readiness, HIPAA compliance, and synthetic test data — written for the people who actually build and test healthcare systems.

3 posts
Go-Live Testing

Practical guides for healthcare IT go-lives — payer integration, EHR upgrades, pre-launch checklists, and what goes wrong.

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2 posts
Transaction Types

Deep dives into specific X12 transaction sets — 837 claims, 835 remittance, COB scenarios, 278 prior auth, and more.

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3 posts
EDI Fundamentals

The building blocks of X12 EDI — envelope structure, trading partner agreements, version strings, and what the implementation guides actually say.

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2 posts
HIPAA & Interoperability

HIPAA test data requirements, de-identification, FHIR vs EDI, and the compliance landscape for healthcare IT teams.

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1 post
Test Strategy

How to build a synthetic test data program — patient registries, reusable cohorts, evidence packages, and test case management.

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All posts
HIPAA & Interoperability May 11, 2026 · 8 min read

FHIR vs X12 EDI: Why You Still Need EDI Test Data in a FHIR World

FHIR is transforming healthcare data exchange — but it has not replaced X12 EDI for claims, remittance, or enrollment. Here is how they coexist and what that means for testing.

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Test Strategy May 1, 2026 · 7 min read

How to Build a Synthetic Patient Registry for Healthcare Testing

A synthetic patient registry is the foundation of realistic EDI and HL7 testing — persistent members with demographics, coverage, providers, and payers all linked.

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Go-Live Testing May 2, 2026 · 8 min read

Payer Integration Testing: A Go-Live Checklist for EDI Implementation Teams

A practical pre-go-live checklist covering claim submission, remittance, eligibility, prior auth, and the envelope-level checks most teams miss.

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EDI Fundamentals May 3, 2026 · 6 min read

What Is a Trading Partner Agreement and How Does It Affect EDI Testing

A trading partner agreement defines the technical parameters of every EDI transaction you exchange with a payer. Here is what it contains and what breaks when it is wrong.

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Transaction Types May 4, 2026 · 8 min read

COB Claims Testing: How to Generate Coordination of Benefits Scenarios

COB claims are the most commonly undertested scenario in healthcare EDI — and the most common source of go-live failures.

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Go-Live Testing May 5, 2026 · 7 min read

How to Test EHR Upgrades Without Touching Production Data

Every Epic, Cerner, or Meditech upgrade carries interface regression risk. Here is how to test EHR upgrades with synthetic data.

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HIPAA & Interoperability May 6, 2026 · 6 min read

HIPAA Test Data: Why De-Identification Is Not Enough

De-identifying production data for testing feels safe — but it creates compliance risks, breaks clinical coherence, and still leaves PHI exposure on the table.

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Go-Live Testing May 7, 2026 · 7 min read

Why Healthcare IT Go-Lives Fail — And How to Fix the Testing Problem

The majority of healthcare IT go-live failures trace back to the same root cause: teams could not test with realistic data before they went live.

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EDI Fundamentals May 9, 2026 · 7 min read

X12 EDI Envelope Structure: ISA, GS, and ST Explained for Healthcare Testers

Every X12 EDI file has the same three-layer envelope — ISA, GS, and ST. Here is what each layer controls and what breaks when it is wrong.

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Transaction Types May 8, 2026 · 8 min read

How to Test 835 Remittance Reconciliation Before Go-Live

Most EDI go-live failures happen at the 835 — not the 837. A practical guide to testing remittance reconciliation before you touch production.

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EDI Fundamentals April 28, 2026 · 6 min read

How to Generate Synthetic X12 837 Test Data for EDI Go-Live Testing

A practical guide to building synthetic 837P test data that is structurally valid, clinically coherent, and safe to use in any test environment.

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