How do I resolve a CO-149 denial?

Verify the patient's lifetime benefit maximum has been reached: Query the payer's eligibility system or review the patient's benefit summary to confirm the lifetime cap and accumulated usage for this benefit category. Post the contractual adjustment to the patient account: Apply the CO-149 adjustment as a provider write-off, ensuring the balance does not transfer to patient responsibility. Communicate benefit exhaustion to the patient: Inform the patient their lifetime maximum has been reached for this service category and discuss alternative coverage options or self-pay arrangements for future services.

835 Denial Combination

CO-149

Contractual Obligation · Claim-Level Adjustment

Contractual Obligation

What This Combination Means

This adjustment indicates the patient has exhausted their lifetime benefit maximum for the specific service or benefit category billed. The payer is contractually denying payment because the benefit cap has been reached. The provider must write off the amount and cannot transfer this balance to the patient.

Financial Responsibility

provider writeoff

The provider must write off the denied amount as a contractual obligation. The CO group code prohibits balance billing the patient for this lifetime maximum exhaustion.

N/A

Appeal Success

Immediate (write-off)

Avg. Resolution

Easy

Difficulty

Appealable

Step-by-Step Resolution

Steps tailored specifically to this CO-149 combination — not generic advice.

Not Appealable:Lifetime benefit maximums are contractual plan limits that cannot be appealed once the cap is verified.

1
Verify the patient's lifetime benefit maximum has been reached
Query the payer's eligibility system or review the patient's benefit summary to confirm the lifetime cap and accumulated usage for this benefit category.
2
Post the contractual adjustment to the patient account
Apply the CO-149 adjustment as a provider write-off, ensuring the balance does not transfer to patient responsibility.
3
Communicate benefit exhaustion to the patient
Inform the patient their lifetime maximum has been reached for this service category and discuss alternative coverage options or self-pay arrangements for future services.

Specialty Context

How CO-149 typically presents across different practice types.

Dental

Commonly applies to orthodontic services where lifetime maximums (e.g., $1,500-$2,500) are frequently included in dental plans and can be exhausted during multi-year treatment.

Medical

May apply to services with lifetime caps such as organ transplants, certain durable medical equipment, or infertility treatments where plan design includes aggregate dollar limits.

Behavioral Health

Can occur with lifetime limits on residential treatment facility days or intensive outpatient programs in plans grandfathered before Mental Health Parity Act requirements.

Individual Code References

View the standalone definition for each code in this combination.

CARC 149

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Synthesized from official definitions — not from training data

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