Modifier 58- Staged or Related Procedure or Service by the Same Physician During the Postoperative Period

Modifier 58 is used when a staged, planned, or more extensive procedure is performed during the postoperative period of another surgery.

What is Modifier 58?

Modifier 58 tells insurance payers that a procedure performed during the postoperative period was planned, staged, or related to the original procedure.

When to Use Modifier 58

• A staged procedure is planned in advance
• A more extensive procedure becomes necessary
• Therapy following a surgical procedure is required
• The procedure is related to the original surgery

Billing Example

A patient undergoes an initial surgical procedure and later returns during the postoperative period for a planned follow-up surgery. Modifier 58 may be appended to the second procedure code.

Documentation Tips

• Clearly document staged treatment plans
• Include medical necessity details
• Explain relationship to original procedure
• Support the need for additional treatment

Common Denial Reasons

• Procedure not considered staged or related
• Missing documentation
• Incorrect postoperative billing
• Insufficient medical necessity

Related Modifiers

Modifier 24

Modifier 57

Modifier 79