Anatomical modifiers
Anatomical modifiers include coronary artery, eye lid, finger, side of body, and toe.
Bilateral procedures
Procedures with a bilateral indicator of "1" must be reported with 1 unit of service and modifier 50. Modifier 50 identifies the service as being performed on both sides of the body. Do not report anatomical modifiers in addition to modifier 50.
If more than one bilateral procedure was performed, report the services on one line, the number of units should be adjusted to reflect the number of bilateral procedures performed.
It is recommended anatomical modifiers only be included when the service is performed unilaterally to show the additional services are not duplicates.
Coronary artery modifiers
Append one of the following modifiers to identify the coronary artery.
| Modifier |
Description |
|---|---|
| LC |
Left circumflex coronary artery |
| LD |
Left anterior descending coronary artery |
| LM |
Left main coronary artery |
| RC |
Right coronary artery |
| RI |
Ramus intermedius |
Eye lid modifiers
Append one of the following modifiers to identify the upper or lower eye lid.
| Modifier |
Description |
|---|---|
| E1 |
Upper left, eyelid |
| E2 |
Lower left, eyelid |
| E3 |
Upper right, eyelid |
| E4 |
Lower right, eyelid |
Finger modifiers
Append one of the following modifiers to identify the digit of the hand.
| Modifier |
Description |
|---|---|
| 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 |
Side of body modifiers
Use one of the anatomical specific modifiers to designate the area or part of the body which the procedure was performed.
| Modifier |
Description |
|---|---|
| LT |
Left side (used to identify procedures performed on the left side of the body) |
| RT |
Right side (used to identify procedures performed on the right side of the body) |
Toe modifiers
Append one of the following modifiers to identify the digit of the foot.
| Modifier |
Description |
|---|---|
| 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 |
Note: If the anatomical modifiers can't be described by using one of the above modifiers, reference Proper Use of Modifiers 59 &- X{EPSU}
References