Timely Filing Limits

Timely filing limits are the timeframes within which claims must be submitted to payers in order to be considered for payment. These limits vary by payer and state, but most range from 90 days to one year from the date of service. If a claim is not submitted within the timely filing limit, the payer may deny the claim and apply a CO-50 code, indicating that the service is not medically necessary or is not covered under the patient's plan. In some cases, payers may also apply a CO-45 code, which indicates that the charge exceeds the payer's fee schedule or allowed amount. For example, if a claim is submitted 120 days after the date of service, and the payer's timely filing limit is 90 days, the claim may be denied with a CO-50 code, resulting in a permanent write-off.

To avoid timely filing limit denials, billing teams must carefully track the submission dates of claims and follow up with payers to ensure that claims are processed within the required timeframe. This can be a challenging task, especially for small practices with limited resources. However, there are tools and strategies that can help, such as automated claim tracking systems and regular follow-up with payers. By prioritizing timely filing limits and staying on top of claim submissions, practices can reduce the risk of permanent write-offs and improve their overall revenue cycle performance.

In our experience, timely filing limit denials often occur because billing teams are not aware of the specific timely filing limits for each payer. For example, Medicare has a timely filing limit of one year from the date of service, while some commercial payers may have limits as short as 90 days. To avoid these denials, it's essential to verify the timely filing limits for each payer and ensure that claims are submitted within the required timeframe.

When a claim is denied due to timely filing limits, the payer will typically apply a CO-50 code, indicating that the service is not medically necessary or is not covered under the patient's plan. In some cases, the payer may also apply a CO-45 code, which indicates that the charge exceeds the payer's fee schedule or allowed amount. In either case, the claim will be denied, and the practice will not receive payment for the service. To recover payment for the denied claim, the practice must appeal the denial and provide documentation to support the claim, such as proof of timely filing or a waiver of the timely filing limit.

The appeals process for timely filing limit denials can be complex and time-consuming, requiring careful documentation and follow-up with the payer. In some cases, the practice may need to provide additional information or supporting documentation to justify the claim, such as medical records or proof of service. By prioritizing timely filing limits and ensuring that claims are submitted within the required timeframe, practices can reduce the risk of denials and appeals, and improve their overall revenue cycle performance.

To avoid timely filing limit denials, practices must prioritize timely filing limits and ensure that claims are submitted within the required timeframe. This can be achieved by implementing a few key strategies, such as verifying the timely filing limits for each payer, tracking claim submissions, and following up with payers to ensure that claims are processed within the required timeframe. By staying on top of claim submissions and prioritizing timely filing limits, practices can reduce the risk of denials and appeals, and improve their overall revenue cycle performance.

For example, our team worked with a practice that was experiencing a high volume of timely filing limit denials due to delayed claim submissions. By implementing an automated claim tracking system and prioritizing timely filing limits, the practice was able to reduce its denial rate by 30% and improve its overall revenue cycle performance. This example highlights the importance of prioritizing timely filing limits and the impact that it can have on a practice's revenue cycle performance.