Modifier 77

Repeat procedure by another physician

Instructions

This modifier is appended to a repeated service from other physicians.

Correct Use

  • Service originally performed by another physician
    • Documentation must include reason for repeat procedure
    • E.g., suspicious findings in original x-ray or EKG

Incorrect Use

  • Not appropriate if repeated by same physician

Claim Coding Example

Physician and Treatment Description CPT/Modifier
Dr. Modi
Radiologic exam; spine, single view
72020
Dr. Fier
Radiologic exam; spine, single view
72020 77

Resource

Last Updated May 09 , 2025