Current Procedural Terminology Codes
AMA-maintained codes used to report medical procedures and services for billing.
Definition
CPT codes are five-character codes maintained by the American Medical Association that describe medical, surgical, and diagnostic services. Category I codes describe established services; Category III codes describe emerging technologies. The AMA CPT Editorial Panel meets several times a year to review applications for new and revised codes, and the AMA/Specialty Society RVS Update Committee (RUC) recommends values to CMS. Category II codes track performance measures. For a new device procedure, a dedicated code usually needs FDA authorization, published clinical evidence and evidence of use by many physicians across the US.What this means in practice
Reimbursement strategy for new devices often hinges on whether an existing Category I CPT code adequately describes the procedure or whether a Category III, then Category I application is needed.Examples
- A medical device company developing a new surgical instrument seeks an existing Category I CPT code that accurately reflects the procedure performed with their device to ensure immediate reimbursement upon market entry.
- A startup introduces a novel diagnostic test and applies for a Category III CPT code to gather utilization data and clinical evidence, aiming for a future Category I designation.
- A hospital billing department uses a specific CPT code to submit claims for a patient who underwent an endoscopic procedure using a newly approved medical device.
- •Misinterpreting Category I codes as sufficient for novel procedures, potentially leading to claim denials.
- •Failing to apply for a Category III CPT code for new technology, delaying reimbursement.
- •Not understanding the specific documentation requirements associated with particular CPT codes.
- •Using an unlisted CPT code without proper justification and accompanying documentation.
Frequently asked questions
Cross-references
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· Hand-selected related conceptsCMS-maintained codes for products, supplies, and services not in CPT.
Diagnosis (CM) and inpatient procedure (PCS) coding systems used in U.S. claims.
Medicare coverage policies issued nationally (NCD) or by individual MAC contractors (LCD).
Temporary CPT codes for emerging technologies, services, and procedures.
Reimbursement & Market Access
· From this learning pathAMA-maintained codes that describe medical procedures and services.
Financial model that estimates the total cost consequences of adopting a new technology to a payer's budget over a defined horizon.
Systematic evaluation of clinical and economic value of a health technology.
Local and National Coverage Determinations from Medicare.
Where this term appears across MedTech Terms.
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Sources
2 sourcesSources support the definition or relevant regulatory context, not necessarily every claim on this page. Each is graded against our source-tier hierarchy so you can see what rests on binding law versus commentary.
Official citation replacements checked: . Medicare documents support Medicare coding, coverage or payment context, not every payer policy or CPT editorial procedure. Citation replacement does not change the full term review date.
- 1Medicare NCCI Policy Manual, Chapter XIII: Category III CPT codesTier 2 VerifiedCMScms.gov
- 2HCPCS general information: Level I CPT and Level IITier 2 UncheckedCMScms.gov
Inline markers like [1] jump to the matching reference above.