CPT billing codes are majorly categorized as below
Evaluation and Management Services ………….99201 – 99499
Anesthesiology…………………………….00100 – 01999, 99100 – 99140
Surgery ………………………………….10021 – 69990
Radiology…………………………………70010 – 79999
Pathology and Laboratory …………………..80048 – 89399
Medicine ………………………………..90281 – 99600

CPT billing code Tips

1. Identify the procedure, tests, services, etc. from the source document (i.e., medical
record, super bill, etc.). Look for any modifying or extenuating circumstances.
2. Identify main terms and sub-terms.
3. Locate the procedure or service in the Index by checking procedure, anatomic site,
synonym, eponymous or abbreviated entries.
4. When you have found the entry in the Index, identify the code number next to it and refer to
that code section in the main body of the manual. Be sure they match.
5. If a range of codes is given for the procedure, read the description of each entry within
the range to make the proper selection that matches or fits as closely as possible to what
was actually done.
6. NEVER code directly from the Index! Always use codes from the main body of CPT.
7. Ensure you have followed all notes and guidelines at the beginning of the section.
8. If the exact code is not what you are looking for, you may want to use a modifier.
9. If there is not a proper code, you may have to use the unlisted procedure codes in that section. Only use there as a last resort.