58

Modifier 58

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

Active

Global Period

90-day Global Period

Modifier

Applies To

Staged or Related Procedures

Category

Use With

Postoperative Care

CPT Codes

What is Modifier 58?

Modifier 58 is used when the same physician performs a staged, more extensive, or therapy-related procedure during the postoperative period of an initial surgery. It indicates that the subsequent procedure was planned prospectively, was more extensive than the original procedure, or represented a planned course of treatment.

Unlike many postoperative procedures, services reported with Modifier 58 typically begin a new global surgical period.

When to Use

A staged procedure planned at the time of the original surgery.
A more extensive procedure performed after the initial operation.
A therapeutic procedure following a diagnostic surgery.
The same physician performs the subsequent procedure during the postoperative period.

Documentation Requirements

Document the original surgical procedure.
Clearly explain why the additional procedure was staged or related.
Support medical necessity for the subsequent procedure.
Include operative findings and treatment plan.
Maintain complete operative documentation.

Examples

Example 1

A surgeon performs a diagnostic biopsy of a suspicious skin lesion. After pathology confirms malignancy, the patient returns during the postoperative period for a planned wide excision. Modifier 58 is appropriate because the second procedure is a planned, more extensive treatment.

Example 2

A patient undergoes placement of a temporary tissue expander following a mastectomy. During the postoperative period, the same surgeon performs the planned breast reconstruction procedure. Modifier 58 is reported because the second surgery was part of the planned treatment.

Billing Tips

Use Modifier 58 only when the subsequent procedure is staged, more extensive, or therapeutic.
The subsequent procedure generally starts a new global period.
Do not use Modifier 58 for unrelated procedures.
Clearly document that the procedure was planned or medically necessary.
Follow payer-specific billing guidelines.

Common Denial Reasons

Documentation does not support a staged or related procedure.
Modifier used for an unrelated surgery.
Medical necessity is not clearly documented.
Incorrect modifier selection.
Insufficient operative documentation.

Related Modifiers

Modifier 24

Unrelated E/M Service During the Postoperative Period

Modifier 25

Significant, Separately Identifiable E/M Service

Modifier 26

Professional Component

Modifier 57

Decision for Surgery

Additional Resources

Modifier 58 is commonly used when a patient requires a planned or more extensive procedure during the postoperative period. Proper documentation is essential to distinguish these services from unrelated or unplanned surgeries.

For comprehensive billing guidance, coding scenarios, documentation requirements, payer policies, modifier comparisons, and real-world examples, visit ModifierLookup.com for the complete Modifier 58 reference guide.