252Denial Code (CARC)Active
Effective 09/30/2012 · Updated 06/02/2013

CO 252 Denial Code - Fix Missing Documentation

Code 252 indicates that the payer requires additional documentation or attachments to process the claim. This may include medical records or other forms of evidence to support the billed service. The accompanying remark code will specify what exactly is needed.

Who Pays: Group Code Liability

With code 252, the group code is typically CO, meaning the provider cannot bill the patient and must supply the necessary documentation. However, if the payer specifies otherwise, verify whether the group code should differ.

Why Claims Get Code 252

  • Missing medical records needed for claim evaluation.
  • Documentation not attached when submitting the claim initially.
  • Specific payer policy requiring extra evidence for certain procedures.
  • Failure to include a necessary claim form or attachment.
  • The documentation submitted was insufficient or unclear.

How to Fix & Resubmit

  1. Review the accompanying remark code for specific documentation requirements.
  2. Gather all necessary attachments or medical records as indicated by the remark code.
  3. Submit the required documentation directly to the payer, following their submission guidelines.
  4. Verify with the payer if additional forms or cover sheets are needed for submission.
  5. Resubmit the claim once the documentation is complete and accurate.

Corrected Claim or Appeal?

For code 252, submitting a corrected claim with the necessary documentation is typically required. An appeal is not usually necessary unless the documentation was previously submitted and misplaced.

Preventing Future 252 Denials

  • Ensure all required documentation is attached before initial claim submission.
  • Implement a checklist for common procedures that require additional documentation.
  • Regularly review payer-specific documentation requirements and updates.
  • Train billing staff on identifying documentation needs based on procedure codes.