How do I resolve a CO-150 denial?

Review claim submitted for frequency limits listed in LCD and Policy Article and either adjust amounts because of supplier liable or appeal claim with documentation to support medical need Consult the Medically Unlikely Edit (MUE) tool to ascertain the maximum allowable units of service that a provider typically reports for a single beneficiary on a given date of service. It's essential to remember that when billing for a 60- or 90-day supply, as permitted by the policy, the claim must feature a narrative in Item 19 of the 1500 hard copy claim form or the 2400/NTE segment of an electronic claim, as stipulated by the Standard Documentation Requirements for claim narratives. This narrative should clearly specify the duration of the supply (either 60- or 90-day supply). In the event that the narrative was omitted from the claim, a reopening process via telephone or in writing will be necessary to append the required narrative See full Medicare contractor resolution steps at tryarceum.com.

Can I appeal a CO-150 denial?

Yes. Most CO-150 denials can be appealed within 60-180 days depending on payer. This denial is appealable if additional supporting documentation exists or if you can demonstrate that the original documentation does meet the criteria for the service level billed. Use our free tool to generate an appeal letter.

CARC Code

150

🔴 Hard Denial

Documentation Does Not Support Service Level

The insurance company reviewed your claim and determined that the medical records or documentation you provided do not justify the level of service you billed. They believe the service should have been billed at a lower level based on what was documented.

medical necessity

Resolution: 35%Hard difficulty21-45 days avg

How to resolve this denial

Which payer denied this claim?

▶✓ Pre-action checklist — verify before contacting the payer

Review the full remittance advice (ERA/EOB) for additional RARC codes that explain the denial.
Verify the claim was submitted with correct patient eligibility and benefit information.
Check if this denial applies to a specific line item or the entire claim.

▶More about CO-150 — stats, related codes, appeal template

35%

Recovery Rate

21-45 days

Avg. Resolution

Hard

Difficulty

Common

Frequency

Payer-Specific Notes

How major payers handle CARC 150 by specialty.

Blue Cross Blue Shield

BCBS requires appeal submission within 180 days for most plans.

Common 835 Combinations

CARC 150 most often appears with these Group Code + RARC combinations on 835 remittances.

COCO-150+N115Policy frequency limits may have been reached, per

Look up any combination →

Appeal Letter Template

Generic appeal template for CARC 150 denials.

We are submitting a formal appeal for claim [CLAIM_NUMBER] for patient [PATIENT_NAME], date of service [DOS]. This claim was denied/adjusted with CARC 150 indicating: "Payment adjusted — info does not support this many/frequency of services.." We have reviewed the claim and are providing the attached documentation to support reconsideration. [SUPPORTING_DOCUMENTATION]. Please reconsider payment per the terms of our contract.

Generate a personalized appeal letter →

Need to resolve this denial?

Get a step-by-step resolution plan with payer-specific guidance and appeal letter generation.

Resolve this denial →

Was this helpful?

← Back to Code Library Automate denial follow-up →