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CARC 96 · CO-96

CARC 96 Denial: Non-covered charge(s) — How to Fix and Appeal

Reviewed by QuickIntell RCM Editorial Team · Last reviewed

Updated

TL;DR

CARC 96 (X12 Non-covered charge(s)). CARC 96 means the service is simply not a covered benefit under the patient's plan.

Official X12 description

“Non-covered charge(s).”

Source: X12 Claim Adjustment Reason Codes. The X12 External Code Lists are the single authoritative source for every CARC descriptor — always verify against the current release before building a claim-scrub rule.

What CARC 96 actually means

CARC 96 means the service is simply not a covered benefit under the patient's plan. This differs from CARC 50 (not medically necessary) — CARC 96 is a contractual exclusion regardless of clinical appropriateness. Common triggers include cosmetic procedures, experimental treatments, and services the plan categorically excludes. Verify the plan document; if the service is excluded, the patient is financially responsible (assuming ABN / advance notice was properly executed).

Common root causes

  • Service is a plan-document exclusion (cosmetic, experimental, investigational).
  • Service is outside the benefit category the patient elected (e.g., no vision or dental rider).
  • Service is carved out to a separate benefit manager (behavioral health, chiropractic, PT/OT cap).

Prevention checklist

  • Check benefits, not just eligibility — a 271 with active coverage does not guarantee this service is a covered benefit.
  • Use payer-specific benefit-category checks (e.g., pre-authorization portals) before elective procedures.
  • Have the patient sign an Advance Beneficiary Notice (ABN) for Medicare or a commercial-equivalent financial-responsibility form when you know the service will be non-covered.

Appeal strategy — step by step

Most CARC 96 denials clear faster with the right remediation than with a formal appeal. Work the steps in order and escalate only when a lower-effort path has been ruled out.

  1. 1If you believe the service should be covered under the plan's benefit categories, appeal with a citation to the specific section of the plan's certificate of coverage.
  2. 2If the service was experimental/investigational but later approved by FDA or NCCN guidelines, cite the updated evidence in the appeal.
  3. 3When the denial is correct, bill the patient with the executed ABN or financial-responsibility form; without that form, write-off may be required.
Sample appeal-letter language for CARC 96
[Provider letterhead] Re: Appeal of CARC 96 — Claim #{claim_number} Member: {member_name} · Member ID: {member_id} Date(s) of Service: {dos} On {remittance_date} this claim was adjusted with CARC 96: "Non-covered charge(s)." We respectfully request reconsideration. The X12 External Code List definition of CARC 96 does not apply to this claim for the following reasons: 1. [Cite the clinical / coding / policy fact that rebuts the adjustment] 2. [Cite the supporting documentation attached — op note, EOB, LCD/NCD citation, NCCI edit indicator, modifier rationale] 3. [Cite the payer's own policy where applicable] Attached: {list supporting documents} Please process payment under the member's benefits. If additional information is required, contact the billing office at {provider_phone} or {provider_email}. Sincerely, {billing_manager_name}, {credentials}

Edit the bracketed fields before sending. This template is a starting point; a payer-specific appeal form may still be required — check the provider portal first.

Payer-specific notes

Payer-specific behavior for CARC 96 publishes here as the QuickIntell anonymized denial ETL ingests sufficient volume. In the meantime, consult the payer directory for the relevant provider manual and appeal form.

How common is CARC 96?

Search demand rank
#3

Out of 306 seeded CARCs, ranked by combined US monthly search volume for "CARC 96", "CO-96 denial", and "denial code 96".

Platform frequency
Pending ETL

Platform frequency ranks publish once the anonymized denial-rate pipeline reaches the publication threshold (strategy §12 Phase 2).

How QuickRCM prevents CARC 96

QuickRCM catches the root causes above before the 837 leaves the clearinghouse:

  • Claim-scrub rules fire on every root cause listed above — the scrub references the same X12 CAS segment logic that drives the denial, so what the payer checks, QuickRCM checks first.
  • When a denial lands, QuickRCM routes it to the correct worker with the documentation bundle already attached (op note, LCD citation, modifier rationale, EOB, primary 835).
  • Appeal templates tuned to each CARC (including this one) pull the supporting facts from the claim and fill the bracketed fields automatically.
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Frequently asked questions — CARC 96

What does CARC 96 mean?

CARC 96 is an X12 Claim Adjustment Reason Code. The official definition is: "Non-covered charge(s)." In plain English, the payer is telling you cARC 96 means the service is simply not a covered benefit under the patient's plan. This differs from CARC 50 (not medically necessary) — CARC 96 is a contractual exclusion regardless of clinical appropriateness. Common triggers include cosmetic procedures, experimental treatments, and services the plan categorically excludes. Verify the plan document; if the service is excluded, the patient is financially responsible (assuming ABN / advance notice was properly executed).

How do I resolve a CARC 96 (CO-96) denial?

Start with the most common root cause: Service is a plan-document exclusion (cosmetic, experimental, investigational). First step: If you believe the service should be covered under the plan's benefit categories, appeal with a citation to the specific section of the plan's certificate of coverage. See the full remediation and appeal checklist on this page before filing a formal appeal.

Is CARC 96 patient responsibility?

No — CARC 96 is typically carried under CO (Contractual Obligation) or OA (Other Adjustment), which means it is the provider's responsibility, not the patient's. Do not bill the patient unless the 835 CAS group code is PR.

What does CARC 96 look like on an EOB or 835 remittance?

On the 835 ERA, CARC 96 appears in Loop 2110 CAS segment as "CAS*CO*96*{amount}". On a paper EOB the same code prints in the Adjustment/Denial Reason column with the X12 description: "Non-covered charge(s)." — usually paired with one or more RARC remark codes in the same remittance line for additional context.

Which RARC is paired with CARC 96?

CARC 96 is commonly observed with RARC N115, N130, N362. The RARC narrows the reason — for example, pointing at a missing modifier, an LCD citation, or a specific policy. Fix the underlying CARC first; the RARC usually clears with the corrected claim.

Disclaimer

This page is operational reference for medical-billing professionals. It is not legal, clinical, or contractual advice. X12 code descriptors are maintained by the X12 External Code Lists; always verify against the current X12 release and the payer's own published policy before submitting or appealing a claim.