How do I resolve a CO-B20+M115+N211 denial?

May not appeal this decision Beneficiary resides in a Competitive Bid area and must contact a Competitive Bid supplier for item

835 Denial Combination

CO-B20+M115+N211

Contractual Obligation · Service-Line Level Adjustment

What This Combination Means

Beneficiary resides in a Competitive bid area and items are being furnished by a non-contract supplier

N/A

Appeal Success

7-14 days

Avg. Resolution

Medium

Difficulty

Appealable

Steps tailored specifically to this CO-B20+M115+N211 combination — not generic advice.

1
May not appeal this decision
2
Beneficiary resides in a Competitive Bid area and must contact a Competitive Bid supplier for item

How CO-B20+M115+N211 typically presents across different practice types.

Dental

Medical

Behavioral Health

View the standalone definition for each code in this combination.

Noridian

Item was partially or fully furnished by another provider Was beneficiary inpatient?

How to Prevent CARC B20 Denials

✓
Verify correct date of service and place of service is billed
✓
Payment cannot be made by DME MAC for items received while a beneficiary is in a hospital stay unless equipment was delivered no more than two days prior to anticipated discharge. In this case the billed date of service is the discharge date
✓
Suppliers may use the Noridian Medicare Portal to verify if beneficiary was inpatient on billed date of service.

Noridian Medicare PortalNMP

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