A Line Note is required when a CPT code is considered non-specific or does not definitively describe the service/supply.
According to the ASCX12-5010 implementation guide for EDI claims, a non-specific code may include in their descriptors terms such as:
- Not otherwise classified (NOC)
- Prescription Drug
- Prescription Drug, Brand Name
When entered onto a session, it will be placed in Loop 2400, Segment SV101-7 of the EDI file. On a CMS-1500, the Line Note will populate the shaded area of Box 24. Entering a Line Note when not required can result in a rejection from the payer.