EDI/837 Clearinghouse Toolkit Directory

A practitioner-grade map of the EDI 837 (P/I) claims toolchain: clearinghouses, submitter APIs, coding/AI helpers, and the standards you actually have to read.

15 entries. Every entry is checked against primary sources before it is published; entries not yet verified are marked.

NuCC 837P Implementation Guide (CMS-1500)

The guide that defines what a professional 837P looks like for the X12 HIPAA transaction set.

What it does
Companion guide to the X12 837 Professional claim: syntax rules, segment ordering, and the CMS-1500 data elements.
Who it's for
Anyone writing or validating an 837P by hand.
Why a sponsor would care
Anchor reference page for high-intent search traffic from implementers.

Verify before publishing Standards, Reference Free

X12 HIPAA Implementation Guides

Normative transaction-set guides for 837, 835, 270/271, 276/277, and the rest of the claim lifecycle.

What it does
The authoritative syntax rules for every HIPAA transaction set used in claims and remittance.
Who it's for
Integrators and mapping engineers who need the actual spec, not a blog post.
Why a sponsor would care
High-quality inbound links from engineers; anchors all '837 vs 837I' comparison pages.

Verify before publishing Standards, Reference Free / member access for some artifacts

Office Ally

Long-standing free clearinghouse for small practices submitting 837P claims.

What it does
Claim submission, remittance/835 handling, and payer enrollment assistance at no monthly fee.
Who it's for
Independent practices and billers with a handful of payers.
Why a sponsor would care
First-party sponsor candidate: clearinghouse vendors want this audience.

Verify before publishing Clearinghouse, Free tier Free clearinghouse; paid support options

Stedi

API-first clearinghouse with a JSON-based 837P submit and 835 ingest model.

What it does
Submit and parse 837/835 via APIs plus a web UI; aimed at developers and mid-market providers.
Who it's for
Engineering teams that want claim submission as an API call, not a portal and a fax machine.
Why a sponsor would care
Direct sponsor candidate: their ICP is exactly this directory's audience.

Verify before publishing Clearinghouse, API-first Free tier + paid plans

Adonis (healthcare EDI API)

API layer that turns 837P generation and ERA/835 posting into integration work, not a desktop app.

What it does
APIs for claim submission, eligibility, and remittance posting for provider and RCM platforms.
Who it's for
RCM software vendors and billing teams automating submission pipelines.
Why a sponsor would care
Sponsor candidate plus integration-partner referral traffic.

Verify before publishing Submitter API, Automation Usage-based

MoxieD

Provider-side EDI and remittance automation aimed at reducing manual claim handling.

What it does
837 submission and 835 posting with automated reconciliation for provider revenue-cycle workflows.
Who it's for
Provider groups that still live in a clearinghouse portal.
Why a sponsor would care
Sponsor candidate; comparison content against legacy portals.

Verify before publishing Submitter API, Automation Subscription

Availity

Multi-payer clearinghouse and payer-connectivity platform used by providers and payers alike.

What it does
837 submission, 835/ERA, 270/271 eligibility, and payer API connectivity in one portal.
Who it's for
Practices and MSOs that need broad payer coverage.
Why a sponsor would care
Premium sponsor slot; also a reference page for payer-by-payer submission guides.

Verify before publishing Clearinghouse, Payer connectivity Free tier + paid plans

Waystar

Revenue-cycle platform with claim creation, scrubbers, and denial analytics.

What it does
End-to-end RCM software: claim edit/scrub, submission, remittance, and denial management.
Who it's for
Multi-provider groups and hospitals modernizing the claim pipeline.
Why a sponsor would care
Sponsor candidate; 'where to scrub before you submit' content cluster.

Verify before publishing RCM platform, Claims Enterprise subscription

TriZetto Facets (Cognizant)

The payer-side claims engine behind a large share of US health plan adjudication.

What it does
Enterprise claims adjudication, benefits, and payment integrity across payer networks.
Who it's for
Readers who need to understand what happens after they submit.
Why a sponsor would care
Context content for enterprise buyers; drives newsletter signups from vendor-side staff.

Verify before publishing Payer claims, Enterprise Enterprise

Change Healthcare / Optum

Large clearinghouse and payment network; the reference point for market structure.

What it does
Claims, payment rails, and analytics across a national provider network.
Who it's for
Anyone benchmarking clearinghouse options at scale.
Why a sponsor would care
Comparison content; rarely a sponsor candidate.

Verify before publishing Clearinghouse, Enterprise Enterprise

Abridge

AI clinical documentation that produces structured notes feeding the coding layer.

What it does
Ambient documentation and structured note generation that reduces manual coding input.
Who it's for
Physician practices under documentation pressure and RCM teams.
Why a sponsor would care
Sponsor candidate for the AI-assisted-coding track of the directory.

Verify before publishing AI + coding, Documentation Subscription / enterprise

AKASA

AI agents aimed at revenue-cycle tasks: eligibility, coding support, payment posting.

What it does
AI agents for RCM workflows including claim status, payment posting, and coding assistance.
Who it's for
RCM leaders evaluating AI against clearinghouse and portal work.
Why a sponsor would care
Sponsor candidate; 'what agents can and cannot do in RCM' essay.

Verify before publishing AI + coding, Automation Subscription

CMS-1500 (paper claim form)

The paper form that the 837P mirrors, item-for-item, for professional claims.

What it does
The 1500 claim form fields and their mapping into the 837P segment structure.
Who it's for
Billers learning 837P without reading the whole implementation guide.
Why a sponsor would care
Top-of-funnel entry point; links into the deeper standards pages.

Verify before publishing Standards, Reference Free

Infinitus

AI agents for phone-based eligibility, claim status, and payment follow-up.

What it does
Voice AI agents that call payers for eligibility, claim status, and payment chasing.
Who it's for
RCM teams chasing stuck claims and stuck money.
Why a sponsor would care
Sponsor candidate for the 'AI in the RCM loop' content cluster.

Verify before publishing AI + coding, Automation Subscription / enterprise

CMS-1500 form revisions (tracking entry)

Tracks which revision of the CMS-1500 each payer expects.

What it does
A maintained table of payer-specific 1500 revisions and their effective dates.
Who it's for
Billers whose claims reject for a stale form revision.
Why a sponsor would care
High-intent page; links into standards content.

Verify before publishing Standards, Reference Free

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