T3HCPCS Level II
Left foot, fourth digit
- Usage notes
- Append to procedure codes performed on the left foot, fourth digit.
- Common mistakes
- Applying a toe modifier to a bilateral or whole-foot procedure code that doesn't require digit-level detail.
Related modifiers
Frequently asked questions
What does modifier T3 mean?
Left foot, fourth digit
When do I use modifier T3?
Append to procedure codes performed on the left foot, fourth digit.
What's a common mistake with modifier T3?
Applying a toe modifier to a bilateral or whole-foot procedure code that doesn't require digit-level detail.
HCPCS modifier data from CMS. CPT® is a registered trademark of the American Medical Association — CPT modifier descriptions are not included on this site. Always verify codes with authoritative sources before making billing decisions.