Category I, II, and III
Category I is the main procedure and E/M set. Category II is optional supplemental tracking. Category III is temporary codes for emerging technology. Official descriptors and sequencing rules live in AMA CPT materials your organization licenses.
Lookup tools versus clinical assignment
A lookup box answers “what is 99214.” Automation answers “given this note, is 99214 supported.” Confusing the two is how thin affiliate lookup sites rank and why a software vendor should keep a separate explainer URL.
Copyright
CPT is copyrighted by the AMA. Publishing full code descriptors without a license is a compliance issue. This article does not reproduce the code set.
Frequently asked questions
Who owns CPT?+
The American Medical Association. See AMA CPT practice-management pages in citations.
Are CPT codes the same as ICD-10?+
No. See ICD-10 vs CPT.