Current Procedural Terminology (CPT)

CPT codes are classified into 3 categories:

I) Category I - This is the main category of CPT that used by providers to represent their different services and reimburse the payment. Below are the 6 different sections of this category with specialties and CPT range,

1. Anesthesia Services: 00100 – 01999 & 99100 - 99150
2. Surgery: 10004 – 69990
3. Radiology Services: 70010 – 79999
4. Pathology and Laboratory Services: 80047 – 89398
5. Medical Services and Procedures: 90281 - 99199 & 99500 - 99607
6. Evaluation & Management Services (E&M): 99202 – 99499

II) Category II - These CPT codes are always billed with Category I code to represent an extra information about the patient condition. It has billed amount as $0.00 and it is 5 digit alpha numeric code where initial 4 digits are numeric value and 5th one is the Letter 'F'. These codes are divided as follows:

1. Composite Measures: (0001F – 0015F) 
2. Patient Management: (0500F – 0584F)
3. Patient History: (1000F – 1505F)
4. Physical Examination: (2000F – 2060F)
5. Diagnostic/Screening Processes or Results: (3006F – 3776F)
6. Therapeutic, Preventive, or Other Interventions: (4000F – 4563F)
7. Follow-up or Other Outcomes: (5005F – 5250F)
8. Patient Safety: (6005F – 6150F)
9. Structural Measures: (7010F – 7025F)
10. Nonmeasure Code Listing: (9001F – 9007F)

III) Category III - It has CPT range 0042T-0593T. These CPT codes are temporary codes that represent new technologies, services and procedure. It is a 5 digit alpha numeric code where initial 4 digits are numeric value and 5th one is the Letter 'T'. These CPTs are usually denied for medically not necessity or experimental, so always follow insurance guidelines for the reimbursement.