AA    Anesthesia services performed by anesthesiologist
AE    Service rendered by nutrition professional /registered dietician
AF    Service rendered by a speciality physician
AG    Service rendered by a primary care physician
AH    Service rendered by a clinical psychologist
AK    Service rendered by nonparticipating physician
AQ    Physician providing a service in a Health Professional Shortage Area (HPSA)
AR    Services Furnished within a Physician Scarcity Area (PSA)
BL    Purchased blood
CA    Inpatient only procedure
CB    Lab not included in ESRD composite rate (ESRD/SNF)
CR   Catastrophe/Disaster Related
E1    Upper left, eyelid
E2    Lower left, eyelid
E3    Upper right, eyelid
E4    Lower right, eyelid
FA    Left hand, thumb
FB    Item Provided without cost to Provider, Supplier or Practitioner
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