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276/277 native · 1,200+ payers · 4-hourly polling

Live claim status, every 4 hours.

Daily-snapshot claim status is the reason stuck claims age unnoticed. By the time a billing analyst spots the status that flipped to "additional documentation requested" three days ago, the claim is already eight days into the 30-day clock. We replaced the snapshot with a 4-hourly poll, mapped the 277 status taxonomy to deterministic actions, and surfaced the stuck-claim signal the moment it triggers.

276/277 protocol native Stuck-claim detection in hours Age-bucket alerting 30/60/90/120
The 277 status taxonomy

Top 20 codes. Mapped to action.

The 277 status code taxonomy is the language the payer uses to describe where a claim sits. Most of the noise is in the long tail of niche codes; about 20 codes cover the vast majority of real-world claim status reads. Each one maps to a deterministic internal action that routes the claim to the correct work queue.

The full mapping carries roughly 200 codes plus the payer-specific overrides for the cases where a payer uses a code in a non-standard way. Under NDA we share the full code-to-action table with the payer-specific exceptions documented.

277 status code · action mapping · top 20
Code
277 description
Action
A1
Acknowledgement / receipt
Monitor
A2
Acknowledgement / acceptance
Monitor
A3
Acknowledgement / returned
Resubmit
A4
Acknowledgement / not found
Resubmit
A6
Rejection / missing info
Request docs
A7
Rejection / invalid info
Fix + resubmit
A8
Rejection / relational error
Fix + resubmit
P0
Pending / in process
Monitor
P1
Pending / additional info
Request docs
P2
Pending / payer review
Awaiting payer
P3
Pending / provider review
Contact provider
P4
Pending / patient review
Contact patient
F1
Finalized / paid
Paid
F2
Finalized / partial pay
Partial pay
F3
Finalized / denied
Appeal triage
F4
Finalized / void
Void
R1
Returned / eligibility issue
Verify eligibility
R5
Returned / benefit issue
Verify benefits
R7
Returned / credentialing
CredPro route
E1
Suspended / awaiting docs
Request docs
Full table = ~200 codes · payer-specific overrides documented · NDA
The capabilities

Six capabilities. One status truth.

Every active claim runs through the same engine. The 276/277 protocol is native; the 277 code taxonomy is mapped to deterministic action; the 4-hourly poll cadence catches status changes the same business day; the stuck-claim detection catches the silent failures that age claims into write-off territory.

01 · 276/277 protocol native

EDI native, not scraping.

276 inquiry and 277 response are the HIPAA-standard EDI transactions for claim status. We run the protocol natively against payer endpoints. No portal screen-scraping fragility, no human-in-the-loop status checks, no broken parsing when a payer redesigns their portal.

02 · Payer-side adapter library

1,200+ endpoints, per-payer quirks.

1,200+ payer endpoints reachable today. Direct connections for the largest payers (Medicare, Medicaid MCOs, BCBS, UHC, Aetna, Cigna, Humana). Clearinghouse routing for the long tail. Per-payer adapter library handles the non-standard fields, response timing, and authentication quirks.

03 · 4-hourly polling cadence

Sub-day, not next-cycle.

Every active claim polls every 4 business hours. Status changes get caught the same business day instead of next-day. Compresses the time from determination to action from 24+ hours down to 4 to 8 hours median.

04 · Status-to-action mapping

200 codes, 12 actions.

The 277 code taxonomy maps to 12 deterministic internal actions: resubmit, appeal, request docs, verify eligibility, verify benefits, contact provider, contact patient, awaiting payer, paid, denied, partial pay, void. Claim routes into the correct work queue within seconds of the 277 landing.

05 · Stuck-claim detection

Same status, too long.

Stuck claims sit at the same 277 status across multiple polls without progressing. The engine watches status progression against the expected adjudication path for the payer and service code. Anything stalling outside the envelope flags to a senior specialist with the full status history.

06 · Age-bucket alerting

30/60/90/120 escalation.

Unpaid claims past 30, 60, 90, and 120 days trigger graduated alerts. 30 alerts the work queue owner; 60 alerts the team lead; 90 escalates to a senior specialist; 120 includes a dollar-value executive summary. Each alert carries the status history and a recommended action.

A claim's life

Submission to determination. One timeline.

An anonymized sample claim from a behavioral health practice. Submitted Monday morning. Determination posted Wednesday morning. Here is what the engine recorded.

Claim 24681357 · Anonymized · Total 22 status reads · 51 hrs to determination
MON · 08:14 AM
837 submitted via clearinghouse SUBMIT

Claim assembled from the EHR encounter. Coverage validated against the latest 271 eligibility. Submitted via Availity to the payer.

MON · 11:47 AM
277CA receipt from clearinghouse A1

Clearinghouse acknowledges receipt. Engine logs the trace ID and queues the first 276 inquiry for 4 hours after submission.

MON · 04:14 PM
First 276 inquiry to payer A2

Payer acknowledges acceptance into the adjudication queue. Status code A2 maps to action: monitor. Next poll queued for +4 hrs.

TUE · 08:14 AM
Status moves to P2 pending payer P2

Claim is now in payer review. Engine compares against expected adjudication path for this payer and service code. Within envelope, no flag.

TUE · 04:14 PM
Status moves to P1 additional info P1

Payer requests additional clinical documentation. Action: request docs. Engine pulls the requested chart sections from the EHR and queues the documentation packet for next-morning auto-submission.

WED · 09:32 AM
Documentation submitted DOCS

Documentation packet assembled overnight and submitted to the payer at 9:32 AM. Trace ID logged. Next 276 inquiry queued.

WED · 11:14 AM
F1 finalized paid F1 · PAID

Payer adjudicates and posts a clean payment. 835 ERA queued for line-level posting via the reconciliation engine. Total time from submission to determination: 51 hours.

How the poll cycle runs

Four steps. Every 4 hours.

Every active claim enters the cycle on submission and exits on a finalized status. Here is the work the engine executes between submission and determination.

Step 01

Inquiry assembled.

276 transaction built per claim with the trace ID, payer ID, service code, and date of service. Batch routing minimizes per-claim API calls where the payer endpoint supports it.

Step 02

Endpoint selection.

Adapter library picks the right path: direct payer endpoint, clearinghouse routing, or portal fallback. Authentication and rate limiting handled per endpoint. Failures auto-retry with exponential backoff.

Step 03

277 response parsed.

Category and status codes extracted. Mapper translates to deterministic internal action. Status history logged with timestamp and source. Cache TTL aligned to the 4-hour poll cycle.

Step 04

Route to work queue.

Claim moves to the correct queue based on the mapped action: resubmit, appeal, request docs, verify, contact, paid, denied. Stuck-claim detection runs against the status progression. Age-bucket alerts fire on threshold breach.

What the engine delivers

Measured outcomes from 4-hourly polling.

Across the active book. Anonymized; individual results depend on payer mix and submission volume.

4-8hrs
Stuck-claim detection latency
From the moment a claim stops progressing through its expected adjudication path to the moment a specialist sees the alert. Industry norm with daily polling is 3 to 7 days. Compression directly translates to fewer claims aging into write-off territory.
200ms
Cached status pull p95
When a user opens a claim or the denial workflow checks status, the response comes from the encrypted in-memory cache in under 200ms p95. Force-refresh triggers a fresh 276 inquiry (1.5 to 4 seconds depending on payer endpoint).
12
Internal actions per 277 code
The full 277 taxonomy collapses to 12 deterministic actions that route the claim to the correct work queue. Every active claim has a current action, a status history, an age, and an owner. Nothing sits forgotten.
Common questions

Frequently asked questions: claim status engine.

What is the 276/277 protocol?
The 276/277 protocol is the HIPAA-standard EDI transaction for claim status inquiry and response. The 276 is the inquiry: the provider asks the payer for the current status of a specific claim. The 277 is the response: the payer returns a category code and a status code that together describe where the claim sits in adjudication. We run the protocol natively against 1,200+ payer endpoints, either direct or through the major clearinghouses.
Why poll every 4 hours instead of daily?
Payer adjudication cycles run at different cadences. Some commercial payers update intraday; Medicare runs overnight batches; Medicaid managed care plans vary state by state. A daily poll catches a single snapshot and adds up to 24 hours of detection latency for stuck claims. The 4-hourly cadence picks up status changes within the same business day, which compresses the time from determination to action. Stuck-claim detection fires within hours rather than days.
How does the status-to-action mapping work?
The 277 status code taxonomy carries roughly 200 distinct codes. Most of them map deterministically to one of 12 internal actions: resubmit, appeal, request additional documentation, verify eligibility, verify benefits, contact provider, contact patient, awaiting payer review, paid, denied final, partial pay, void. The mapping is the same one a billing analyst would apply manually; the engine applies it within seconds of the 277 landing and routes the claim into the correct work queue.
What is stuck-claim detection?
A stuck claim is one where the payer reports the same status code across multiple consecutive polls without progressing. The detection logic watches the status code progression for each claim, compares against the expected adjudication path for the payer and service code, and flags any claim that stalls outside the expected envelope. Stuck claims route to a senior specialist with the full status history rather than restarting the work queue from scratch.
How many payer endpoints do you support?
1,200+ payer endpoints in production. Connectivity splits across three paths. First, direct payer connection: the largest commercial and government payers (Medicare, Medicaid MCOs, BCBS plans, UnitedHealthcare, Aetna, Cigna, Humana) where we hold a direct private endpoint. Second, clearinghouse routing: Availity, Change Healthcare, Optum, Waystar, Office Ally, Trizetto cover the long tail of regional and specialty payers. Third, portal scraping for the few payers that still do not offer EDI.
What is the age-bucket alerting?
Claims that sit unpaid past 30, 60, 90, and 120 days from submission trigger graduated alerts. The 30-day bucket alerts the work queue owner. The 60-day bucket alerts the team lead. The 90-day bucket escalates to a senior specialist. The 120-day bucket includes a dollar-value-weighted executive summary. Each alert carries the full status history, the payer-specific average TAT for that service code, and a recommended action. No claim sits forgotten.
What is the typical sub-second status pull latency?
Sub-second median for cached responses. The system maintains an encrypted cache of the most recent 277 response per claim with a TTL aligned to the 4-hour poll cadence. When a user opens a claim or the AI denial workflow needs a status check, the response comes from cache in under 200ms p95. A force-refresh action triggers a fresh 276 inquiry, which takes 1.5 to 4 seconds depending on payer endpoint latency.
How does this connect to CredPro and the AI denial workflow?
CredPro carries the provider enrollment status per payer. When a 277 returns a denial reason of 'provider not credentialed' or 'enrollment lapse', the engine cross-references the CredPro enrollment record and routes the claim to the credentialing team rather than the billing team. The AI denial workflow ingests the same 277 stream, predicts overturn probability from the status code plus historical appeal outcomes, and prioritizes the appeal queue by dollar value. See the credentialing page for how the shared enrollment and audit layer works.

Send 90 days of unpaid claims. We send back the stuck map.

A free 90-day AR status audit. Drop the unpaid claim file. We return a four-page audit covering aged claim distribution by payer and 277 status code, stuck-claim concentration, projected recovery from a 4-hourly polling cadence, and a 90-day fix plan. A senior partner on the call.