| 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 |
| TA | Left foot, great toe |
| TB | Drug or biological acquired with 340b drug pricing program discount, reported for informational purposes |
| TC | Technical component; under certain circumstances, a charge may be made for the technical component alone; under those circumstances the technical component charge is identified by adding modifier 'tc' to the usual procedure number; technical component charges are institutional charges and not billed separately by physicians; however, portable x-ray suppliers only bill for technical component and should utilize modifier tc; the charge data from portable x-ray suppliers will then be used to build customary and prevailing profiles |
| TD | Rn |
| TE | Lpn/lvn |
| TF | Intermediate level of care |
| TG | Complex/high tech level of care |
| TH | Obstetrical treatment/services, prenatal or postpartum |
| TJ | Program group, child and/or adolescent |
| TK | Extra patient or passenger, non-ambulance |
| TL | Early intervention/individualized family service plan (ifsp) |
| TM | Individualized education program (iep) |
| TN | Rural/outside providers' customary service area |
| TP | Medical transport, unloaded vehicle |
| TQ | Basic life support transport by a volunteer ambulance provider |
| TR | School-based individualized education program (iep) services provided outside the public school district responsible for the student |
| TS | Follow-up service |
| TT | Individualized service provided to more than one patient in same setting |
| TU | Special payment rate, overtime |
| TV | Special payment rates, holidays/weekends |
| TW | Back-up equipment |
