835 Denial Combination

CO-16+N362

CO

Contractual Obligation · Claim-Level Adjustment

Coding Error

What This Combination Means

The claim was submitted with units of service or days that exceed the payer's contractual maximum allowable threshold, constituting a billing error. The payer has reduced payment or denied the excess units based on the provider's contracted fee schedule limits. The provider is contractually obligated to accept this adjustment and cannot balance bill the patient for the excess units submitted.

Financial Responsibility

provider writeoff

The provider must write off the amount associated with the excess units or days submitted beyond the contractual maximum. This is a contracted adjustment, not patient responsibility.

N/A

Appeal Success

Immediate (write-off)

Avg. Resolution

Easy

Difficulty

No

Appealable

Step-by-Step Resolution

Steps tailored specifically to this CO-16+N362 combination — not generic advice.

Not Appealable:This is a contractual fee-schedule adjustment based on agreed-upon unit/day maximums, not a medical necessity or coverage determination subject to appeal.
  1. 1

    Identify the units or days billed versus the payer's contractual maximum

    Compare the submitted units/days on the claim to the allowed maximum stated in the provider contract or fee schedule

  2. 2

    Post the contractual adjustment to the patient account

    Write off the denied amount as a contractual adjustment; ensure billing system does not transfer balance to patient

  3. 3

    Update billing protocols to prevent future occurrences

    Configure claim scrubbing rules or billing templates to enforce payer-specific unit/day limits before submission

Specialty Context

How CO-16+N362 typically presents across different practice types.

Dental

Common with procedures billed with excessive surfaces (e.g., more than 5 surfaces on a single restoration) or number of radiographs exceeding annual contract limits

Medical

Frequently occurs with physical therapy visits, skilled nursing days, home health visits, or anesthesia units exceeding contractual maximums per episode or date of service

Behavioral Health

Typical with outpatient therapy sessions when units billed exceed contracted session limits per day or week, or when intensive outpatient programs bill beyond allowed daily hours

Individual Code References

View the standalone definition for each code in this combination.

CARC 16RARC N362

Medicare Contractor Guidance for CARC 16

FCSO + Noridian + uhc + aetna + bcbs_az

This RUC is received when a claim is submitted with missing, incorrect, or invalid information. For details pertaining to your claim, please refer to the remittance advice remark codes (RARCs) on the remittance advice (RA).

How to Prevent CARC 16 Denials

  • ✓

    Review the RARC on the remittance advice to identify which specific field has the error.

  • ✓

    Per Medicare guidelines, claims must be filed no later than 12 months after the date of service. RUCs are not considered filed/submitted.

CMS guidelines for completion of form CMS-1500 in the Medicare Claims Processing Manual (100-04), Chapter 26SPOTFee Schedule Lookup ToolCMS laboratory demographics lookupModifier lookup toolNoridian Medicare PortalNMPIVRSame or SimilarPECOSPDAC

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 →

Synthesized from official definitions — not from training data

Was this helpful?
← Back to Combo LookupBrowse All Codes →