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HCPCS Modifiers
HCPCS/National modifiers
| Term | Definition |
|---|---|
| LT | left side of the body |
| RT | right side of the body |
| AI | principle physician of record |
| BL | special acquisition of blood and blood products |
| CA | procedure only payable in inpatient setting when performed emergently on an outpatient who expires prior to admission |
| CR | catastrophe/disaster related |
| E1 | upper left eyelid |
| E2 | lower left eyelid |
| E3 | upper right eyelid |
| E4 | lower right eyelid |
| FA | left hand thumb |
| F1 | left hand second digit |
| F2 | left hand third digit |
| F3 | left hand fourth digit |
| F4 | left hand fifth digit |
| F5 | right hand thumb |
| F6 | right hand second digit |
| F7 | right hand third digit |
| F8 | right hand fourth digit |
| F9 | right hand fifth digit |
| FB | item provided without cost or full credit received for replaced device |
| FC | partial credit received for replaced device |
| GA | waiver of liability statement issued as required by payer policy, individual case |
| GG | performance & payment of a screening mammogram and diagnostic mammogram on same patient on same day |
| GH | screening mammogram converted to diagnostic mammogram on same day |
| LC | left circumflex coronary artery |
| LD | left anterior descending coronary artery |
| LM | left main coronary artery |
| Q0 | investigational clinical service provided in an approved clinical research study |
| Q1 | routine clinical service provided in an approved research study |
| QM | ambulance service provided under arrangement by a provider of services |
| QN | ambulance service furnished directly by a provider of service |
| RC | right coronary artery |
| RI | ramus intermedius coronary artery |
| TA | left foot great toe |
| T1 | left foot second digit |
| T2 | left foot third digit |
| T3 | left foot fourth digit |
| T4 | left foot fifth digit |
| T5 | right foot great toe |
| T6 | right foot second digit |
| T7 | right foot third digit |
| T8 | right foot fourth digit |
| T9 | right foot fifth digit |