CARC 54 Active

CO-54: Multiple Physicians/Assistants Not Covered

TL;DR

Provider responsibility — gather documentation and appeal if the denial is in error. The patient is not liable for this amount.

Action
Appeal
Who Pays
Provider
Appeal
Yes
Patient Impact
None
Disclaimer
This content is for informational purposes only and does not constitute professional billing advice. Always verify information against your payer contracts and current coding guidelines. Consult a certified billing specialist for specific claim issues.

What Does CO-54 Mean?

With CO (Contractual Obligation), the CARC 54 denial for multiple physicians/assistants not covered is the provider's contractual responsibility. The patient is not liable for this amount. However, the provider may appeal with supporting clinical or administrative documentation if the denial is believed to be in error.

CARC 54 indicates multiple physicians/assistants not covered. The payer determined that the service or a portion of it does not meet coverage criteria under the patient's current plan benefits or the applicable coverage rules.

Common scenarios that trigger this adjustment include: payer determined that multiple surgeons or surgical assistants were not justified for the case; The payer does not cover assistant surgeon services for this procedure; Multiple physicians treating the same condition simultaneously without documented necessity. The group code paired with CARC 54 determines who bears the financial responsibility — CO places it on the provider as a contractual obligation, OA indicates a coordination of benefits or other payer adjustment, PR shifts it to the patient.

Common Causes

Cause Frequency
Multiple surgeons not authorized Payer determined that multiple surgeons or surgical assistants were not justified for the case Most Common
Assistant surgeon not covered The payer does not cover assistant surgeon services for this procedure Common
Concurrent care by multiple physicians Multiple physicians treating the same condition simultaneously without documented necessity Common

How to Resolve

  1. Review the denial Examine the CO-54 denial and any RARC codes to understand the specific basis for the coverage determination.
  2. Gather supporting documentation Collect medical records, clinical notes, authorization documents, or other evidence that supports the medical necessity or coverage of the denied service.
  3. File the appeal Appeal with detailed operative notes explaining why multiple surgeons or assistants were medically necessary (e.g., complexity, patient acuity, procedure duration). Include documentation of the specific roles each provider performed.
  4. Track the appeal outcome Monitor the appeal status and follow up as needed. If denied again, consider further levels of appeal if available.
Appeal Guide

Appeal with detailed operative notes explaining why multiple surgeons or assistants were medically necessary (e.g., complexity, patient acuity, procedure duration). Include documentation of the specific roles each provider performed.

Common RARC Pairings

The RARC code tells you exactly what triggered the CO-54:

RARC Description
N381 Consult contract/fee schedule for payment information Review payer's multiple provider coverage policy →
M62 Missing/incomplete/invalid treatment authorization Obtain prior authorization for multiple providers →

How to Prevent CO-54

Also Filed As

The same CARC 54 may appear with different Group Codes:

OA-54 PR-54

Related Denial Codes

CO-61 — Failure to Obtain Second Surgical Opinion CO-23 — Prior Payer Adjudication Impact CO-35 — Lifetime Benefit Maximum Reached CO-40 — Charges Do Not Meet Emergent/Urgent Care Qualifications CO-49 — Non-Covered Routine/Preventive Exam

Sources

  1. https://x12.org/codes/claim-adjustment-reason-codes
  2. https://revenuecyclemgmt.com/claim-adjustment-reason-codes/
  3. https://www.rivethealth.com/blog/carcs-rarcs-claim-adjustment-remittance-advice-codes
  4. Codes maintained by X12. Visit x12.org for official definitions.