835 Denial Combination
CO-50+M127
Contractual Obligation · Service-Line Level Adjustment
What This Combination Means
Documentation requested was not received or was not received timely Added ST or KV modifier and an affirmative UTN to claim line, which initiated a prepayment review. Documentation requested was not received
N/A
Appeal Success
7-14 days
Avg. Resolution
Medium
Difficulty
No
Appealable
Step-by-Step Resolution
Steps tailored specifically to this CO-50+M127 combination — not generic advice.
- 1
If the remittance advice reason includes MA130, correct claim and rebill
- 2
A Redetermination request may be submitted with all relevant supporting documentation. Noridian encourages Redeterminations/Appeals be submitted using the Noridian Medicare Portal. Review applicable Local Coverage Determination (LCD), LCD Policy Article, and Documentation Checklists prior to submitting request. Noridian encourages Redeterminations be submitted using the Noridian Medicare Portal
Specialty Context
How CO-50+M127 typically presents across different practice types.
Dental
Medical
Behavioral Health
Individual Code References
View the standalone definition for each code in this combination.
Medicare Contractor Guidance for CARC 50
FCSO + Noridian + uhc + aetna + bcbs_azThis denial reason code is received when a procedure code is billed with an incompatible diagnosis for payment purposes, and the ICD-10 code(s) submitted is/are not covered under an LCD or NCD.
How to Prevent CARC 50 Denials
- ✓
Refer to the Active / Future / Retired LCDs medical coverage policies for a list of procedure codes relating to services addressed in the LCD, and the diagnoses for which a service is or is not considered medically reasonable and necessary.
- ✓
Report only the diagnosis(es) for the treatment date of service.
- ✓
Be proactive, and stay informed on Medicare rules and regulations, and maximize the self-service tools available on the First Coast website.
Need to resolve this denial?
Get a complete resolution plan with appeal guidance for this exact combination in seconds.
Generate a free resolution plan & appeal letter →