HCPCS Modifier LM
Published 07/16/2020
Description
HCPCS modifier LM is used to identify the left main coronary artery.
Guidelines and Instructions
This modifier may be submitted with the following CPT codes:
- 92920–92944
- 92978
- 92975
- 92979
- 92980
- 92982
- 92995–92996
- 93454–93461
- 93530–93533
This modifier may not be submitted with the following CPT codes:
- 32701
- 33361–33369
- 33990–33993
- 36221–36228
- 37197
- 37211–37214