CO-285: Appeal Procedures Not Followed
Your appeal was procedurally rejected — not reviewed on its merits. Fix the procedural issues, rebuild the appeal to meet all requirements, and resubmit within the remaining deadline.
What Does CO-285 Mean?
CO-285 means the appeal was procedurally rejected as a contractual matter. The payer did not review the appeal on its merits because it did not meet their procedural requirements. The provider must correct the appeal submission and resubmit following the proper procedures. The underlying denial remains unresolved.
CARC 285 is a procedural rejection of an appeal — not a decision on the appeal's merits. The payer is saying your appeal was not considered because it did not follow their required submission procedures. The underlying claim denial has not been reviewed on substance.
This is a frustrating but fixable denial. Common procedural failures include submitting the appeal through the wrong channel (mail vs. electronic), using the wrong forms, omitting required supporting documentation, skipping a required level of appeal (e.g., going directly to second-level review without completing first-level), or not addressing the appeal to the correct department. Each payer has specific appeal procedures, and what works for one payer may not work for another.
The critical point is that your appeal window may still be open — CARC 285 does not necessarily mean you have lost the right to appeal. However, the clock is ticking. Review the denial letter immediately, obtain the payer's complete appeal procedure documentation, and resubmit a properly formatted appeal within the remaining timeframe. If the appeal deadline has passed due to the procedural rejection, request an extension citing the circumstances.
Common Causes
| Cause | Frequency |
|---|---|
| Appeal submitted without following required procedures The appeal was filed without following the payer's specific appeal procedures such as using the wrong form, submitting to the wrong address, or not including required elements | Most Common |
| Incomplete appeal documentation The appeal was submitted without all required supporting documentation such as medical records, test results, or clinical justification | Common |
| Wrong level of appeal submitted The appeal was filed at the wrong level in the appeals process, skipping required steps or filing at an inappropriate level | Common |
| Missing required appeal elements The appeal submission lacks required elements such as provider signature, patient authorization, or specific appeal request language | Common |
| Non-compliance with payer-specific appeal requirements The appeal does not meet the specific formatting, content, or procedural requirements of the particular payer | Occasional |
How to Resolve
- Review the procedural rejection Read the denial notice to understand exactly which appeal procedures were not followed.
- Obtain complete procedures Get the payer's full appeal requirements including forms, format, documentation, submission channels, and appeal levels.
- Rebuild the appeal Prepare a new appeal that fully complies with every procedural requirement. Include all required documentation.
- Submit properly Send the corrected appeal through the correct channel, addressed to the right department, within the remaining timeframe.
- Confirm receipt Contact the payer to confirm they received the resubmitted appeal and it meets their procedural requirements.
Obtain the payer's complete appeal procedures and requirements. Prepare a new appeal that follows all required steps including proper forms, required documentation, correct submission method, and all required elements. Include a cover letter acknowledging the prior procedural issue and explaining how the new submission corrects it.
Common RARC Pairings
The RARC code tells you exactly what triggered the CO-285:
| RARC | Description |
|---|---|
| N381 | Alert: Consult your contractual agreement for restrictions, billing, and payment information. Review the payer's appeal procedures and requirements before resubmitting the appeal → |
How to Prevent CO-285
- Maintain a reference guide of each payer's appeal procedures, forms, and submission requirements
- Use standardized appeal checklists to verify all requirements are met before submission
- Train staff on payer-specific appeal procedures and update training when procedures change
- Verify appeal submission requirements with the payer before sending when procedures are unclear
General Prevention
- Establish comprehensive, documented appeal protocols for each payer
- Submit appeals within specified deadlines with all required documentation
- Thoroughly analyze denial reasons before resubmission to ensure compliance with appeal procedures
- Maintain open communication with insurance payers about appeal requirements
- Provide ongoing staff training on payer-specific appeal procedures
- Implement tracking systems for appeal deadlines and procedures
Also Filed As
The same CARC 285 may appear with different Group Codes:
Related Denial Codes
Sources
- https://www.mdclarity.com/denial-code/285
- https://resdac.org/sites/datadocumentation.resdac.org/files/Adjustment%20Reason%20Code%20Code%20Table%20(TAF%20Claims).txt
- https://x12.org/codes/claim-adjustment-reason-codes
- Codes maintained by X12. Visit x12.org for official definitions.