| A1 |
Dressing for one wound |
| A2 |
Dressing for two wounds |
| A3 |
Dressing for three wounds |
| A4 |
Dressing for four wounds |
| A5 |
Dressing for five wounds |
| A6 |
Dressing for six wounds |
| A7 |
Dressing for seven wounds |
| A8 |
Dressing for eight wounds |
| A9 |
Dressing for nine or more wounds |
| AA |
Anesthesia services performed personally by anesthesiologist |
| AD |
Medical supervision by a physician: more than four concurrent anesthesia procedures |
| AE |
Registered dietician |
| AF |
Specialty physician |
| AG |
Primary physician |
| AH |
Clinical psychologist |
| AI |
Principal physician of record |
| AJ |
Clinical social worker |
| AK |
Non participating physician |
| AM |
Physician, team member service |
| AO |
Alternate payment method declined by provider of service |
| AP |
Determination of refractive state was not performed in the course of diagnostic ophthalmological examination |
| AQ |
Physician providing a service in an unlisted health professional shortage area (hpsa) |
| AR |
Physician provider services in a physician scarcity area |
| AS |
Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery |
| AT |
Acute treatment (this modifier should be used when reporting service 98940, 98941, 98942) |
| AU |
Item furnished in conjunction with a urological, ostomy, or tracheostomy supply |
| AV |
Item furnished in conjunction with a prosthetic device, prosthetic or orthotic |
| AW |
Item furnished in conjunction with a surgical dressing |
| AX |
Item furnished in conjunction with dialysis services |
| AY |
Item or service furnished to an esrd patient that is not for the treatment of esrd |
| AZ |
Physician providing a service in a dental health professional shortage area for the purpose of an electronic health record incentive payment |