How do I resolve a CO-167+N362 denial?

Compare billed units/days against payer policy limits for the specific diagnosis codes submitted: Determine if the diagnosis codes reported are appropriate for the volume of service rendered and whether they align with payer coverage policies for frequency or duration Identify whether a more appropriate primary or secondary diagnosis code exists that supports the full units/days provided: Review clinical documentation to determine if a covered diagnosis was present but not reported, or if the diagnosis sequence should be adjusted to reflect the service intensity Submit a corrected claim with accurate diagnosis codes that support the units/days billed, or adjust units to match policy limits for the current diagnosis: If documentation supports a different diagnosis code that allows higher units, file a corrected claim; otherwise, write off the excess units and adjust billing practices for future encounters

835 Denial Combination

CO-167+N362

Contractual Obligation · Claim-Level Adjustment

Coding Error

What This Combination Means

The payer has denied a portion of the claim because the submitted diagnosis codes do not support coverage, and specifically the units or days of service billed exceed the maximum allowed for those diagnosis codes. This is a contractual adjustment where the diagnosis reported does not justify the volume of service submitted, requiring the provider to write off the excess amount.

Financial Responsibility

provider writeoff

The provider must write off the denied amount under the contractual obligation with the payer. The patient cannot be billed for units or days that exceed what the submitted diagnosis codes support.

N/A

Appeal Success

1-3 business days (corrected claim)

Avg. Resolution

Medium

Difficulty

Appealable

Step-by-Step Resolution

Steps tailored specifically to this CO-167+N362 combination — not generic advice.

Not Appealable:This is a contractual adjustment (CO) based on the diagnosis codes submitted not supporting the volume of services billed, which is a coding issue rather than a medical necessity dispute.

1
Compare billed units/days against payer policy limits for the specific diagnosis codes submitted
Determine if the diagnosis codes reported are appropriate for the volume of service rendered and whether they align with payer coverage policies for frequency or duration
2
Identify whether a more appropriate primary or secondary diagnosis code exists that supports the full units/days provided
Review clinical documentation to determine if a covered diagnosis was present but not reported, or if the diagnosis sequence should be adjusted to reflect the service intensity
3
Submit a corrected claim with accurate diagnosis codes that support the units/days billed, or adjust units to match policy limits for the current diagnosis
If documentation supports a different diagnosis code that allows higher units, file a corrected claim; otherwise, write off the excess units and adjust billing practices for future encounters

Specialty Context

How CO-167+N362 typically presents across different practice types.

Dental

Medical

Common with home health visits, physical therapy sessions, or observation days where the diagnosis submitted does not justify the frequency or length of stay billed under payer policy guidelines

Behavioral Health

Frequently seen with outpatient therapy or intensive outpatient programs where the diagnosis code limits the number of allowable sessions per time period, such as adjustment disorders versus more severe diagnoses that permit higher session counts

Individual Code References

View the standalone definition for each code in this combination.

CARC 167 RARC N362

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Synthesized from official definitions — not from training data

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