Modifier 77
Repeat procedure by another physician
✅ When to Use Modifier 77
When a different physician repeats the same procedure on the same day.
Coding Tips for Modifier 77
Real-world specialist guidance from the PayerReady Medical Coding Team, including audit triggers, denial patterns, and payer policy variations.
Repeat procedure by ANOTHER physician on the same day. Common in coverage handoffs, ED to inpatient transitions. Like 76 but for a different rendering NPI.
Modifier 77 FAQ
What does modifier 77 mean? +
Repeat procedure by another physician
When should I use modifier 77? +
When a different physician repeats the same procedure on the same day.
When should I NOT use modifier 77? +
Avoid appending this modifier if the documentation does not support its use.
What documentation is required for modifier 77? +
Complete chart documentation supporting the modifier's clinical or billing rationale.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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