835 Denial Combination
CO-252+N524
Contractual Obligation · Claim-Level Adjustment
Missing InformationWhat This Combination Means
The payer is stating that additional documentation was required to fully adjudicate the claim, but has elected to make a payment that they consider final under their policy. The CO group code with N524 indicates the payer has made a contractual payment decision, treating the partial payment as complete even though documentation was not received, and the provider must write off any remaining balance.
Financial Responsibility
provider writeoff
The provider must write off the adjusted amount as a contractual obligation. The payment received is considered payment in full by the payer despite the missing documentation, and no balance can be transferred to the patient.
N/A
Appeal Success
Immediate (write-off)
Avg. Resolution
Easy
Difficulty
No
Appealable
Step-by-Step Resolution
Steps tailored specifically to this CO-252+N524 combination — not generic advice.
- 1
Post the contractual adjustment to the patient account
Record the CO adjustment as a contractual write-off since N524 indicates the payer considers this payment complete under their policy terms
- 2
Verify zero patient balance remains for this service line
Ensure no portion of the adjusted amount is transferred to patient responsibility, as this is a CO contractual write-off
- 3
Document the payment-in-full policy application in account notes
Record that the payer invoked their payment-in-full policy despite missing documentation for future reference and pattern analysis
Specialty Context
How CO-252+N524 typically presents across different practice types.
Dental
May occur when narrative reports, periodontal charts, or radiographs were requested but the payer elected to make a policy-based final payment without receiving them
Medical
Common when operative notes, medical records, or itemized supply documentation was requested but the payer processed payment-in-full under contractual terms without waiting for the attachments
Behavioral Health
May appear when treatment plans, psychological testing reports, or progress notes were requested but the payer applied payment-in-full policy without receiving the clinical documentation
Individual Code References
View the standalone definition for each code in this combination.
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