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Eligibility dates and the right payer · Last verified 2026-08-30

CARC 290 denial code on dental claims

Independent publisher · Drafted with AI assistance, verified against primary sources · Credentialed review pending

CARC 290 is the “Forwarded to medical” code on a dental remittance. Whether it can be contested depends on the facts; run the checks below first.

Group code: X12 places no group-code restriction on 290. A group code always travels with a CARC, and it — not the CARC — assigns financial responsibility, so read the one on your remittance rather than assuming.

Registry entry: X12 Claim Adjustment Reason Code 290 — in the code set since 2017-11-01; active, with no deactivation date. Read on the list published 2025-11-01.

Verdict

Depends — check the facts first

A valid contract term may control, while a factual error may be contested. Run the checks on this page before using the appeal window.

The dental plan's part is finished, and its no-benefit decision is a plan-terms question if you want to test it. The live claim is now at the medical carrier: track it rather than refiling.

The appealability verdicts on these pages are Dentovio's editorial classification. No standards body or payer publishes an appealability taxonomy: X12 defines what a code means, not what to do about it. Each verdict is built from the code's own mechanics and the payer and federal documents cited on the page, and it is a starting point for triage rather than a prediction of any outcome.

What it means in dental

The dental plan has no benefit for the claim and has already sent it on to the patient's medical plan. Nothing needs refiling; the medical plan's decision is what to watch for.

The forwarded half of the 254-and-290 pair. X12 puts a note on each code pointing at the other, so this is a distinction the standard goes out of its way to draw rather than an ambiguity. Refiling the same services with the medical carrier after a 290 is a good way to collect a duplicate denial.

What to do

  1. 1.Confirm with the medical carrier that it received the forwarded claim
  2. 2.Track it as a medical claim from here; do not refile the same services
  3. 3.If the dental plan's no-benefit call itself looks wrong, that is a separate plan-terms question

Remark codes verified with this CARC

No source read for this page pairs a remark code with CARC 290. X12 defines no CARC-to-RARC pairings at all: payer crosswalks are specific to that payer's own internal reason codes, and the CAQH CORE combination list binds only payers operating inside its business scenarios. Read the remark code on your own remittance.

Appeal routes, by plan funding

Fully-insured route

State insurance law (prompt-pay statutes + plan appeal terms)

Check the state's prompt-pay rule first — an overdue clean claim may already be accruing interest without any appeal. Then run the policy's internal appeal, and escalate to the state insurance department where deadlines were missed.

Self-funded (ERISA) route

29 CFR 2560.503-1

Appeal in the patient's name (or with an authorized-representative form), demand the claim file and the specific internal rule relied on, and hold the plan to the 30/60-day clocks in writing. Before counting on a state remedy, read that state's own scope provision: several state prompt-pay and external-review statutes reach only insurers and HMOs by their terms, so they do not extend to a self-funded plan.

Medicaid managed care route

42 CFR 438.402 / 438.408

First classify the dispute. For an enrollee benefit denial, track two clocks in order: 60 days to the plan appeal, then (after the resolution notice) the state's 90–120-day fair-hearing window, with written consent before a provider acts for the enrollee. For a provider payment or contract dispute, use the provider contract and state Medicaid program process instead. For members under 21, federal EPSDT coverage rules also matter.

Read with this code

Sources

Last verified 2026-08-30. Dentovio is an independent publisher — not a payer, the ADA, X12, CAQH CORE, or any government agency. Code meanings and remark-code meanings on this page are Dentovio's own wording, written from the official X12 Claim Adjustment Reason Code and Remittance Advice Remark Code lists and linked back to them; X12 holds the copyright in those lists and its descriptions are not reproduced here. CDT codes are referenced by number only; CDT is the American Dental Association's copyrighted code set and this page does not reproduce ADA descriptors. Appealability verdicts are Dentovio editorial classification, not a standard. Every fact traces to the code steward's registry, a federal rule or manual, a HIPAA operating rule, an association publication, or a named payer's own document — never to a billing blog. This page was drafted with AI assistance and verified against the primary sources linked here. It has not been reviewed by a credentialed dental billing specialist, attorney, or clinician. Educational billing reference only — not billing, legal, or clinical advice. Plan contracts control individual outcomes, and processing policies usually live in the payer's provider manual rather than in the signed agreement. How this data is verified