| A Codes | 733 | Transportation Services Including Ambulance, Medical & Surgical Supplies |
| B Codes | 51 | Enteral And Parenteral Therapy |
| C Codes | 520 | Temporary Codes For Use with Outpatient Prospective Payment System |
| E Codes | 617 | Durable Medical Equipment |
| G Codes | 1909 | Procedures / Professional Services (Temporary Codes) |
| H Codes | 91 | Alcohol and Drug Abuse Treatment Services / Rehab Services |
| J Codes | 1000 | Drugs Administered Other Than Oral Method, Chemotherapy Drugs |
| K Codes | 174 | Durable Medical Equipment For Medicare Administrative Contractors |
| L Codes | 907 | Orthotic And Prosthetic Procedures, Devices |
| M Codes | 205 | Medical Services |
| P Codes | 58 | Pathology And Laboratory Services |
| Q Codes | 428 | Miscellaneous Services (Temporary Codes) |
| R Codes | 3 | Diagnostic Radiology Services |
| S Codes | 530 | Commercial Payers (Temporary Codes) |
| T Codes | 114 | Established For State Medical Agencies |
| U Codes | 5 | Coronavirus Diagnostic Panel |
| V Codes | 212 | Vision, Hearing And Speech-Language Pathology Services |