QB    Physician Providing a Service in a Rural HPSA
QK   
Medical Direction of Two, Three or Four Concurrent Anesthesia Procedures Involving  Qualified Individuals
QL     
Patient pronounced dead (Ambulance)
QM   
Ambulance service provided under arrangement by a provider of services
QN   
Ambulance service furnished directly by provider of services
QR   
Clinical Trial
QU   
Physician Providing a Service in an URBAN HPSA
QV   
Routine Costs Associated with Clinical Trials
QY   
Medical Direction of One CRNA by an Anesthesiologist
QZ   
CRNA Services Provided Without the Medical Direction of an Anesthesiologist
RC   
Right coronary artery (Use with codes 92980–92982, 92995, and 92996.)
RP   
Replacement and Repair
RT   
Right side (used to identify procedures performed on the right side of the body)
SB   
Service rendered by a nurse midwife
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