Denial code 21

Denial code 21: The no-fault carrier is responsible for this injury/illness.

Accelerate your revenue cycle

Boost patient experience and your bottom line by automating patient cost estimates, payer underpayment detection, and contract optimization in one place.

Get a Demo

What is Denial Code 21

Denial code 21 is used when the insurance company determines that the injury or illness being claimed is the responsibility of a no-fault carrier. This means that the insurance company believes that another party, such as an auto insurance company or workers' compensation carrier, should be responsible for covering the costs associated with the injury or illness, rather than the healthcare provider's insurance.

Common Causes of CARC 21

Common causes of code 21 are:

  1. No-fault insurance liability: This code is used when the injury or illness is the responsibility of a no-fault insurance carrier. It indicates that the healthcare provider should bill the no-fault insurance carrier for the services provided.
  2. Incorrect insurance information: Code 21 may be assigned if the healthcare provider submitted the claim to the wrong insurance carrier. It is important to verify the patient's insurance information before submitting claims to ensure accurate billing.
  3. Lack of authorization: Some insurance plans require prior authorization for certain procedures or treatments. If the healthcare provider did not obtain the necessary authorization before providing the services, code 21 may be assigned.
  4. Out-of-network services: If the healthcare provider is not contracted with the patient's insurance plan, code 21 may be used. This indicates that the patient is responsible for the full payment of the services received.
  5. Coordination of benefits (COB) issues: Code 21 can also be triggered when there are COB issues. This occurs when a patient has multiple insurance plans, and there is confusion about which plan should be billed first.
  6. Billing errors: In some cases, code 21 may be assigned due to billing errors such as incorrect coding, missing information, or incomplete documentation. It is crucial for healthcare providers to review claims thoroughly before submission to minimize the risk of denials.
  7. Excluded services: Certain services or procedures may not be covered by the patient's insurance plan. If the healthcare provider billed for an excluded service, code 21 may be assigned.
  8. Timely filing limits: Insurance companies typically have specific timeframes within which claims must be submitted. If the healthcare provider fails to submit the claim within the designated timeframe, code 21 may be assigned.
  9. Duplicate billing: Submitting multiple claims for the same service can result in code 21. It is important to ensure that only one claim is submitted for each service provided.
  10. Medical necessity issues: If the insurance company determines that the services provided were not medically necessary, code 21 may be assigned. This can occur if the documentation does not support the medical necessity of the services rendered.

Ways to Mitigate Denial Code 21

Ways to mitigate code 21 include:

  1. Accurate and thorough documentation: Ensure that all patient records are complete, including detailed information about the injury or illness. This will help establish the liability of the no-fault carrier and prevent denials based on insufficient documentation.
  2. Timely submission of claims: Submit claims to the no-fault carrier promptly to avoid any potential delays or denials. Delays in claim submission can lead to the expiration of filing deadlines, resulting in the denial of reimbursement.
  3. Clear communication with the no-fault carrier: Establish effective lines of communication with the no-fault carrier to address any questions or concerns they may have regarding the claim. Promptly respond to any requests for additional information or documentation to prevent unnecessary denials.
  4. Stay up-to-date with no-fault carrier policies: Regularly review and stay informed about the policies and guidelines of the no-fault carrier. This will help ensure that claims are submitted in accordance with their requirements, reducing the likelihood of denials.
  5. Utilize technology and automation: Implementing technology solutions, such as electronic health records (EHR) and automated billing systems, can help streamline the claims process and minimize errors. This will improve the accuracy and efficiency of claim submissions, reducing the risk of denials.
  6. Conduct regular internal audits: Perform regular audits of your billing and coding processes to identify any potential issues or errors. This proactive approach will help identify and address any patterns or trends that may lead to denials, including code 21.
  7. Continuous staff training and education: Provide ongoing training and education to your billing and coding staff to ensure they are up-to-date with the latest coding guidelines and regulations. This will help minimize coding errors and improve the accuracy of claim submissions, reducing the likelihood of denials.

By implementing these strategies, healthcare providers can effectively mitigate code 21 and improve their revenue cycle management processes.

How to Address Denial Code 21

The steps to address code 21 are as follows:

  1. Review the patient's insurance information: Verify that the patient has provided accurate and up-to-date insurance details, including the name of the no-fault carrier responsible for the injury or illness.
  2. Gather supporting documentation: Collect all relevant medical records, treatment notes, and any other documentation that substantiates the claim for the specific injury or illness. This may include accident reports, police reports, or any other evidence that confirms the no-fault liability.
  3. Prepare a comprehensive claim submission: Compile all the necessary information and complete the claim form with the appropriate coding and billing details. Ensure that the claim accurately reflects the services provided, the diagnosis, and any other relevant information required by the insurance company.
  4. Submit the claim with supporting documentation: Send the claim electronically or via mail to the no-fault carrier along with all the supporting documentation. Make sure to follow the carrier's specific submission guidelines and include any required forms or attachments.
  5. Monitor the claim status: Keep track of the claim's progress by regularly checking the status through the carrier's online portal or by contacting their claims department directly. This will help ensure that the claim is being processed and reviewed in a timely manner.
  6. Follow up on any additional requests: If the no-fault carrier requires additional information or documentation to process the claim, promptly provide the requested materials. Maintain open communication with the carrier to address any questions or concerns they may have.
  7. Appeal if necessary: If the claim is denied or not processed as expected, review the denial reason provided by the carrier. If you believe the denial is incorrect or unjustified, gather any additional supporting evidence and submit an appeal. Follow the carrier's appeal process and provide a clear and concise explanation of why the claim should be reconsidered.

By following these steps, healthcare providers can effectively address code 21 and increase the chances of successful reimbursement for services provided to patients with no-fault liability.

RARCs Associated to CARC 21

Get paid in full by bringing clarity to your revenue cycle

Full Page Background