835 Denial Combination

CO-133

CO

Contractual Obligation · Service-Line Level Adjustment

What This Combination Means

The original claim was overpaid — the payer is taking a recoupment or offsetting the overpayment against this claim.

50%

Appeal Success

14-30 days

Avg. Resolution

Medium

Difficulty

Yes

Appealable

Step-by-Step Resolution

Steps tailored specifically to this CO-133 combination — not generic advice.

  1. 1

    Request the overpayment calculation detail from the payer.

  2. 2

    Verify the overpayment was actually made and the amount is correct.

  3. 3

    If the overpayment is disputed, file a formal dispute within the payer's recoupment dispute process.

  4. 4

    If confirmed, post the recoupment and update your AR.

Specialty Context

How CO-133 typically presents across different practice types.

Dental

Verify the original claim was overpaid — the payer is taking a recoupment or offsetting the overpayment against this claim per your dental plan contract and documentation requirements.

Medical

Confirm the original claim was overpaid — the payer is taking a recoupment or offsetting the overpayment against this claim against payer policy and submit corrected claim as needed.

Behavioral Health

Apply behavioral health parity rules and confirm the original claim was overpaid — the payer is taking a recoupment or offsetting the overpayment against this claim per MHPAEA standards.

Individual Code References

View the standalone definition for each code in this combination.

CARC 133

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