How do I resolve a CO-197+N95 denial?

Verify the rendering and billing provider credentials on the claim: Confirm the provider type, specialty, and NPI submitted match contracted credentials authorized to perform and bill this specific service code under the payer agreement Determine if authorization was obtained and if the authorized provider matches the rendering provider: Check whether precertification was secured and whether it was issued for the specific provider type/specialty that rendered the service, as mismatches trigger this combination If provider type is appropriate and authorization exists, submit an appeal with credentialing documentation and authorization confirmation: Include proof of provider specialty certification, network participation agreements, and authorization records showing eligibility to bill this service code If provider type is ineligible, determine if service can be billed under a different qualified provider within the practice: Identify if a supervising physician or other credentialed provider can be listed as the rendering provider per payer policy and incident-to rules Write off the denied amount if the provider type restriction is valid and no alternative billing arrangement exists: Process as a contractual adjustment once confirmed the provider specialty cannot bill this service under the plan terms

835 Denial Combination

CO-197+N95

Contractual Obligation · Claim-Level Adjustment

Authorization

What This Combination Means

The payer denied the claim because required precertification or authorization was missing, but the supplemental remark indicates the denial may actually stem from the provider's type or specialty being ineligible to bill this particular service. This combination suggests a contractual restriction where the rendering or billing provider's credentials do not permit them to perform or bill for the service under the plan's network rules, making the authorization issue potentially secondary to the eligibility problem.

Financial Responsibility

provider writeoff

The provider must write off the denied amount per their contract with the payer. The patient cannot be billed because this is a contractual obligation issue related to provider eligibility and authorization requirements.

60%

Appeal Success

30-60 days (appeal process)

Avg. Resolution

Hard

Difficulty

Yes

Appealable

Step-by-Step Resolution

Steps tailored specifically to this CO-197+N95 combination — not generic advice.

Appealable:Authorization denials are typically appealable, especially when provider type restrictions may have been incorrectly applied or when proper credentialing was in place.

1
Verify the rendering and billing provider credentials on the claim
Confirm the provider type, specialty, and NPI submitted match contracted credentials authorized to perform and bill this specific service code under the payer agreement
2
Determine if authorization was obtained and if the authorized provider matches the rendering provider
Check whether precertification was secured and whether it was issued for the specific provider type/specialty that rendered the service, as mismatches trigger this combination
3
If provider type is appropriate and authorization exists, submit an appeal with credentialing documentation and authorization confirmation
Include proof of provider specialty certification, network participation agreements, and authorization records showing eligibility to bill this service code
4
If provider type is ineligible, determine if service can be billed under a different qualified provider within the practice
Identify if a supervising physician or other credentialed provider can be listed as the rendering provider per payer policy and incident-to rules
5
Write off the denied amount if the provider type restriction is valid and no alternative billing arrangement exists
Process as a contractual adjustment once confirmed the provider specialty cannot bill this service under the plan terms

Specialty Context

How CO-197+N95 typically presents across different practice types.

Dental

May occur when general dentists bill specialist procedures (periodontics, endodontics, oral surgery) requiring specific credentials or when authorization was needed for specialty services but not obtained from a credentialed specialist.

Medical

Common when mid-level providers (NPs, PAs) bill services restricted to physicians, when surgeons bill medical management codes outside their specialty scope, or when authorization was obtained but listed a different provider type than who rendered the service.

Behavioral Health

Frequently seen when non-prescribing therapists bill medication management services, when BCBAs bill services restricted to licensed psychologists, or when authorization specified one provider discipline but a different type rendered the service.

Individual Code References

View the standalone definition for each code in this combination.

CARC 197 RARC N95

Medicare Contractor Guidance for CARC 197

Noridian + uhc + aetna + bcbs_az

Prior authorization 14-byte Unique Tracking Number (UTN) was not appended to claim Special modifier to bypass the prior authorization process was not appended to claim line. This HCPCS code requires prior authorization

How to Prevent CARC 197 Denials

✓
Obtain prior authorization for item, prior to delivery
✓
Ensure to append 14-byte UTN provided within the affirmative decision letter to the claim
✓
If prior authorization is being bypassed, ensure the special modifiers required are appended to the claim line

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Synthesized from official definitions — not from training data

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