835 Denial Combination
CO-252+N275
Contractual Obligation · Claim-Level Adjustment
Missing InformationWhat This Combination Means
The payer denied this claim because the purchased service provider identifier from another payer is missing, incomplete, or invalid. This denial applies when services were purchased from another provider and coordination of benefits requires that provider's identification information. The contractual obligation group code indicates the provider must write off the denied amount while gathering the required documentation.
Financial Responsibility
provider writeoff
The provider must absorb the denied amount as a contractual write-off per the payer agreement. Patient cannot be billed for this adjustment even after the documentation issue is resolved.
82%
Appeal Success
30-45 days (corrected claim cycle)
Avg. Resolution
Medium
Difficulty
Yes
Appealable
Step-by-Step Resolution
Steps tailored specifically to this CO-252+N275 combination — not generic advice.
- 1
Identify the purchased service arrangement details
Determine which other payer's provider identifier is required and obtain the correct identifier from the purchasing entity or other payer records
- 2
Submit a corrected claim with the valid other payer purchased service provider identifier
Include the complete and accurate identifier in the appropriate loop/segment of the claim form (Loop 2330B for other payer purchased service provider on 837)
- 3
Monitor the corrected claim for adjudication
Track the reprocessed claim to ensure the identifier is accepted and the claim is paid per contract terms
Specialty Context
How CO-252+N275 typically presents across different practice types.
Dental
May occur when dental services are purchased from specialty providers (oral surgeons, endodontists) and the referring payer's network requires specific purchased service identifiers for coordination of benefits
Medical
Common in purchased laboratory, radiology, or anesthesia services where one provider purchases services from another and multiple payers require coordination with specific provider identifiers
Behavioral Health
Applies when mental health services are purchased from contracted specialists or facility-based providers and other payer information must include the purchasing provider's identifier for proper coordination
Individual Code References
View the standalone definition for each code in this combination.
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