How do I resolve a CO-5+M77 denial?

A self service reopening can be conducted to change place of service or HCPC code on the Noridian Medicare Portal

Can I appeal a CO-5+M77 denial?

CO-5+M77 denials are generally not appealable. Place of service is not consistent with HCPC billed

835 Denial Combination

Contractual Obligation · Service-Line Level Adjustment

What This Combination Means

Place of service is not consistent with HCPC billed

N/A

Appeal Success

7-14 days

Avg. Resolution

Medium

Difficulty

Appealable

Steps tailored specifically to this CO-5+M77 combination — not generic advice.

1
A self service reopening can be conducted to change place of service or HCPC code on the Noridian Medicare Portal

How CO-5+M77 typically presents across different practice types.

Dental

Medical

Behavioral Health

View the standalone definition for each code in this combination.

Noridian

Place of service is not consistent with HCPC billed

How to Prevent CARC 5 Denials

✓
Verify prior to billing that the correct place of service for the HCPC provided is on the claim. The place of service for DMEPOS claims is considered the location where a beneficiary will primarily use the DMEPOS item.

Noridian Medicare Portal

Need to resolve this denial?

Get a complete resolution plan with appeal guidance for this exact combination in seconds.

Was this helpful?