233Denial Code (CARC)Active
Effective 01/24/2010

CO 233 Denial Code - Hospital-Acquired Condition Fix

Code 233 indicates that the payer will not reimburse for services or charges associated with a hospital-acquired condition or preventable medical error. This adjustment reflects a non-payment decision due to the nature of the condition or error.

Who Pays: Group Code Liability

With code 233, the adjustment typically falls under CO, meaning it's a contractual obligation write-off and the patient cannot be billed. This is because the denial is due to a condition or error deemed preventable or acquired during the hospital stay, not the patient's fault.

Why Claims Get Code 233

  • A hospital-acquired infection was documented during the patient's stay.
  • A surgical error occurred that was preventable.
  • A complication arose from a procedure due to lack of adherence to safety protocols.
  • The condition was identified as preventable under the payer's policy.
  • The hospital failed to follow established guidelines, resulting in an error.

How to Fix & Resubmit

  1. Review the patient's medical records to confirm if the condition was indeed acquired in the hospital or preventable.
  2. Check the payer's specific guidelines on hospital-acquired conditions and preventable errors to ensure accurate understanding.
  3. If the denial was issued in error, gather supporting documentation, such as medical records or safety protocol adherence, to dispute the claim.
  4. Contact the payer to discuss the denial if there is evidence the condition was not preventable or acquired.
  5. Submit a formal appeal with all supporting documentation if warranted by the payer's policy.

Corrected Claim or Appeal?

Submit a corrected claim if documentation shows the condition wasn't acquired or preventable. File a formal appeal if the denial was issued in error despite adherence to protocols.

Preventing Future 233 Denials

  • Ensure strict adherence to hospital safety protocols and procedures to prevent errors.
  • Regularly train staff on identifying and preventing hospital-acquired conditions.
  • Implement a review process for all procedures to ensure compliance with safety standards.
  • Maintain thorough documentation of all patient care to support claims if a denial is issued.