Challenge
Payer companion guides override the base standard
Agnotic approach
We build per-payer profiles from companion guides and validate against them, not just generic 5010 schemas.
We build real X12 EDI pipelines for claims, eligibility, and remittance — 837 professional and institutional, 835 ERA, 270/271, and 276/277 — with correct loops, segments, and clearinghouse routing.
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X12 is the ANSI standard behind US healthcare's administrative transactions. The HIPAA-mandated 5010 versions cover claims submission (837P/837I/837D), electronic remittance advice (835 ERA), eligibility inquiry and response (270/271), and claim status (276/277) — each a structured hierarchy of interchange, functional group, transaction set, loops, and segments.
The difficulty is not the format — it is the ecosystem. Payers and clearinghouses each have companion guides, situational rules, and enrollment requirements. We build EDI pipelines that generate compliant 837s, reconcile 835 remittances back to claims, and handle real-time 270/271 eligibility, with 999/TA1 acknowledgment handling and rejection routing throughout.
See how we design X12 EDI pipelines with clearinghouse routing, acknowledgment handling, and remittance reconciliation.

Common failure modes
Challenge
Payer companion guides override the base standard
Agnotic approach
We build per-payer profiles from companion guides and validate against them, not just generic 5010 schemas.
Challenge
Trading-partner enrollment blocks go-live for weeks
Agnotic approach
We start clearinghouse and payer enrollment in week one and run engineering in parallel until it lands.
Challenge
835 remittances do not reconcile to claims
Agnotic approach
A reconciliation engine keyed on claim and service-line identifiers with CARC/RARC-driven exception queues.
Challenge
Silent rejections at the 999/TA1 layer
Agnotic approach
Full acknowledgment handling with dashboards so rejected interchanges are caught before revenue is lost.
The exact 5010 transaction surface, generated and parsed against payer companion guides.
Professional (837P), Institutional (837I), and Dental (837D) claim generation with correct 2000/2300/2400 loops and situational rules.
Electronic Remittance Advice parsing with claim, service-line, adjustment (CAS), and CARC/RARC reason-code reconciliation back to submitted claims.
Real-time eligibility and benefit inquiry and response, including coverage, copay, deductible, and plan-level details.
Claim status inquiry/response plus 999 and TA1 acknowledgment handling with automated rejection routing and resubmission.
Where it runs
Automated 837 generation from your billing or RCM system to payers.
835-driven auto-posting of payments and adjustments.
270/271 checks at scheduling and registration to reduce denials.
276/277 polling to keep billing teams ahead of adjudication.
Structured surfacing of denials and underpayments for follow-up.
Most EDI projects stall in payer testing and enrollment. We plan companion guides and trading-partner setup from week one.
Health Insurance Portability and Accountability Act
Protect PHI with privacy-first architecture, encrypted storage and transmission, strict access controls, and traceable audit logs.
General Data Protection Regulation
Implement lawful consent flows, data minimization, retention controls, and secure processing for sensitive health data.
Fast Healthcare Interoperability Resources
Enable standardized health data exchange across apps, care teams, and systems through robust FHIR-ready APIs.
Health Level Seven International
Support enterprise-grade interoperability with HL7-based integrations for records, events, and clinical messaging workflows.
Health Information Trust Alliance
Align security programs to healthcare-specific control and risk management practices trusted by providers and ecosystem partners.
Health Information Technology for Economic and Clinical Health Act
Design with breach notification readiness, digital record safeguards, and operational controls that support regulated care programs.
FDA Software as a Medical Device
Plan software quality, traceability, and documentation pathways for products that may require SaMD review and submission.
Medical Device Regulation (European Union)
Prepare EU market-ready processes for risk classification, evidence tracking, and lifecycle governance under MDR expectations.
Substance Abuse and Mental Health Services Administration
Apply confidentiality controls and consent-aware sharing models for behavioral and mental health data experiences.
Standards we build against
Companion guides, enrollment, and acknowledgment handling treated as first-class work.
We map your target payers and clearinghouse, gather companion guides, and define which transaction sets are in scope.
We set up clearinghouse or direct payer connectivity, trading-partner enrollment, and SFTP or API transport.
Generate and parse transaction sets, validate against 5010 rules, and run payer test files through to acceptance.
Production submission with 999/TA1 handling, rejection dashboards, and 835 reconciliation monitoring.
Transaction surface
The core HIPAA 5010 transactions and how we handle each.
| Transaction | Purpose | Direction | Notes |
|---|---|---|---|
| 837P / 837I / 837D | Claim submission | Outbound | Professional, institutional, dental; heavy situational rules. |
| 835 | Electronic remittance advice | Inbound | Reconcile payments, adjustments, CARC/RARC back to claims. |
| 270 / 271 | Eligibility inquiry / response | Round-trip | Often real-time; coverage, copay, deductible details. |
| 276 / 277 | Claim status inquiry / response | Round-trip | Track adjudication progress after submission. |
| 999 / TA1 | Acknowledgments | Inbound | Interchange and functional-group acceptance or rejection. |
Every payer publishes a companion guide that constrains these further. We build to the guide, not just the base standard.
Lera Health shows the delivery discipline EDI work demands — a compliant, data-heavy platform built end to end. It is related proof of our ability to model structured healthcare data and handle sensitive records under HIPAA, the same rigor claims and remittance pipelines require.

Real claims and remittance flows, not just format familiarity.
HIPAA 5010 conformance and audit logging around every transaction generated or received.
We read companion guides fluently and know where situational rules and enrollment trip teams up.
We close the loop from 837 submission to 835 reconciliation so denials and underpayments are visible.
We connect EDI to your billing, RCM, and analytics stack rather than delivering an isolated parser.
Claims, eligibility, and ERA that reconcile
Send us your payer list and transaction scope. We will return a realistic plan with enrollment and testing milestones.
contact@agnotic.com
Partnerships
contact@agnotic.com