251Denial Code (CARC)Active
CO 251 Denial Code: Fix Incomplete Documentation
Code 251 indicates that the claim was not processed because the submitted attachments or documentation were incomplete or deficient. The payer requires additional information to move forward with the claim's processing.
Who Pays: Group Code Liability
With code 251, the group code is typically CO, meaning the provider must address the deficiency without billing the patient. However, if the payer specifies PR, the patient might be responsible for supplying additional information.
Why Claims Get Code 251
- Missing required documentation such as operative reports or lab results.
- Submitted attachments that are illegible or not in the format required by the payer.
- Failure to include necessary authorization forms.
- Incorrect or incomplete information on the submitted documents.
- Documents were not submitted within the timeframe specified by the payer.
How to Fix & Resubmit
- Review the remittance advice for any accompanying remark codes that specify what documentation is missing.
- Gather the required documentation as indicated by the payer's remark codes.
- Ensure all documents are complete, legible, and in the correct format before resubmission.
- Contact the payer if the required documentation is unclear or if further clarification is needed.
- Submit the corrected or additional documentation along with a new claim or as directed by the payer.
Corrected Claim or Appeal?
For code 251, submitting a corrected claim with the required documentation is typically the appropriate action. An appeal is not usually necessary unless the documentation requirement is disputed.
Preventing Future 251 Denials
- Ensure all required documents are complete and legible before initial claim submission.
- Maintain a checklist of necessary attachments specific to each payer's requirements.
- Train staff on payer-specific documentation guidelines to reduce errors.
- Implement a double-check system for documentation before claims are submitted.