All PlansAdministrativeMedium impact
PAP208 - From and To Dates of Service on a CMS 1500 - Updated first bullet under Service Dates (Box 24A) to not deny claim but to make to and from dates the same if left blank. Updated Exceptions 1. And 2. To include return/deny claims. Moved language from Exceptions 1. To 2. And added a number 3 to separate instances.
Blue Cross of Idaho·ID·Reimbursement
Effective date
Jun 1, 2025
We identified it
Jun 19, 2026
Summary
Blue Cross of Idaho updated their CMS 1500 billing policy for Box 24A service dates. If providers leave the 'to' date blank but fill in the 'from' date, the insurer will now automatically make both dates the same instead of denying the claim. The exceptions for specific procedure codes (59425, 59426, 77427) now clearly state claims will be returned/denied if not billed correctly.
Action Required
Immediately: Billing team should update staff training on CMS 1500 Box 24A completion. While Blue Cross of Idaho will now auto-populate missing 'to' dates instead of denying claims, ensure proper billing practices by always completing both 'from' and 'to' dates. For codes 59425/59426, verify date ranges in Box 24A and onset date in Box 14 are included. For code 77427, ensure only 1 unit is billed in Box 24G to avoid claim returns.