LDHCPCS Level II
Left anterior descending coronary artery
- Usage notes
- Append to cardiac catheterization/intervention codes to identify the left anterior descending coronary artery as the vessel treated.
- Common mistakes
- Using LD and LM interchangeably — they identify different vessels and using the wrong one misrepresents the procedure performed.
Related modifiers
L1Provider attestation that the hospital laboratory test(s) is not packaged underLCLeft circumflex coronary arteryLLLease/rental (use the 'll' modifier when dme equipment rental is to be appliedLMLeft main coronary arteryLRLaboratory round tripLSFda-monitored intraocular lens implantLTLeft side (used to identify procedures performed on the left side of the body)LUFractionated payment
Frequently asked questions
What does modifier LD mean?
Left anterior descending coronary artery
When do I use modifier LD?
Append to cardiac catheterization/intervention codes to identify the left anterior descending coronary artery as the vessel treated.
What's a common mistake with modifier LD?
Using LD and LM interchangeably — they identify different vessels and using the wrong one misrepresents the procedure performed.
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.