180Denial Code (CARC)Active
Effective 06/30/2005 · Updated 09/30/2007

CARC 180 Denial Code - Resolve Residency Requirement Issues

CARC 180 indicates that the patient has not fulfilled the residency requirements necessary for coverage. This denial suggests that the payer believes the patient does not live in the required area or has not lived there long enough to qualify for benefits.

Who Pays: Group Code Liability

With CARC 180, the liability typically falls under the CO group code if the residency requirement is a contractual condition. However, if the patient failed to provide correct residency information, it may be a PR situation where the patient can be billed.

Why Claims Get Code 180

  • Patient's address on file does not match the residency requirement documentation.
  • Patient recently moved and hasn't met the insurer's residency duration requirement.
  • Insurance plan requires proof of residency that has not been provided.
  • Patient's enrollment data was incorrectly entered, leading to a mismatch.
  • The payer's records have outdated residency information.

How to Fix & Resubmit

  1. Verify the patient's current address and residency status to ensure it meets payer requirements.
  2. Check the insurance policy to understand specific residency requirements and duration criteria.
  3. Update the patient's address in the system and contact the insurance company to update their records if needed.
  4. Gather and submit any required residency documentation to the payer.
  5. If the payer's records are incorrect, contact them to resolve the discrepancy and request claim reprocessing.

Corrected Claim or Appeal?

Submit a corrected claim if residency information was initially incorrect. If the payer's determination seems wrong despite correct information, consider a formal appeal with supporting residency documentation.

Preventing Future 180 Denials

  • Ensure patient address information is accurately captured and updated in the system during registration.
  • Educate patients about the importance of informing the practice of address changes promptly.
  • Regularly verify residency requirements with payers and ensure compliance with their policies.
  • Implement a checklist for verifying residency documentation during patient intake.