E4HCPCS Level II
Lower right, eyelid
- Usage notes
- Append to eye/eyelid procedure codes to identify the lower right eyelid.
- Common mistakes
- Omitting a second eyelid modifier when the same procedure was performed on two different eyelids in one session, which understates the units billed.
Related modifiers
E1Upper left, eyelidE2Lower left, eyelidE3Upper right, eyelidEAErythropoietic stimulating agent (esa) administered to treat anemia due toEBErythropoietic stimulating agent (esa) administered to treat anemia due toECErythropoietic stimulating agent (esa) administered to treat anemia not due toEDHematocrit level has exceeded 39% (or hemoglobin level has exceeded 13.0 g/dl)EEHematocrit level has not exceeded 39% (or hemoglobin level has not exceeded
Frequently asked questions
What does modifier E4 mean?
Lower right, eyelid
When do I use modifier E4?
Append to eye/eyelid procedure codes to identify the lower right eyelid.
What's a common mistake with modifier E4?
Omitting a second eyelid modifier when the same procedure was performed on two different eyelids in one session, which understates the units billed.
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.