LM Modifier
Left main coronary artery
HCPCS modifierLM
- Description
- Left main coronary artery
- Short description
- Left main coronary artery
- Added
- January 1, 2013
- Last change
- January 1, 2013
What does the LM modifier mean?
The HCPCS Level II modifier LM means: “Left main coronary artery”. Append it to a HCPCS or CPT code on the claim line when the payer’s policy calls for it; placement and payment effects are defined by each payer.
Other L modifiers
- LC – Left circumflex coronary artery
- LD – Left anterior descending coronary artery
- LL – Lease/rental (use the 'll' modifier when dme equipment rental is to be applied against the purchase price)
- LR – Laboratory round trip
- LS – Fda-monitored intraocular lens implant
- LT – Left side (used to identify procedures performed on the left side of the body)
- LU – Fractionated payment