--- title: "Category III CPT Code, Definition | MedTech Terms" description: "Temporary CPT code for emerging technologies and services. Plain-English Reimbursement definition for MedTech teams, with examples and related terms." lang: en json-ld: | { "@context": "https://schema.org", "@graph": [ { "@type": "DefinedTerm", "@id": "https://medtechterms.com/terms/category-iii-cpt#term", "name": "Category III CPT Code", "description": "Category III CPT codes are temporary alphanumeric codes (ending in 'T') that track utilization of new or emerging procedures for which insufficient data exists for Category I designation. 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It creates a formal mechanism for tracking and evaluation, which is essential for eventual widespread adoption and reimbursement." } } ] } ] } --- [ MedTech Terms The authoritative reference ](/) Browse Learn [Latest](/latest) About 1. [Home](/) 2. / 3. [Terms](/terms) 4. / 5. [Reimbursement](/terms?cat=Reimbursement) 6. / 7. Category III CPT Code [All terms](/terms) Reimbursement [Hospital Buyer & Reimbursement](/ecosystems/hospital-buyer) # Category III CPT Code Temporary CPT code for emerging technologies and services. Reviewed by [Christian Espinosa, Founder, Blue Goat Cyber](/authors/christian-espinosa) Last reviewed May 5, 2026 ## Definition [Category III CPT codes](/terms/category-iii-codes) are temporary alphanumeric codes (ending in 'T') that track utilization of new or emerging procedures for which insufficient data exists for Category I designation. Codes sunset after five years if not converted or renewed. What the regulation says [Category III CPT codes](/terms/category-iii-codes), while primarily for reimbursement tracking, indirectly influence MedTech product development and market access strategies. The Centers for Medicare & Medicaid Services (CMS) and private payers use these codes to monitor emerging technologies, helping to determine future coverage and payment policies. Although not regulatory codes themselves, their existence reflects the ongoing evaluation of new medical procedures. ## What this means in practice Often the first formal [CPT](/terms/cpt-codes) pathway for a novel device-enabled procedure. Payment is at payer discretion; many commercial payers deny Category III claims as investigational. ## Examples - A MedTech company develops a novel minimally invasive surgical device. To track its clinical use, a Category III CPT code is established before sufficient long-term outcomes data is available for a Category I designation. - A hospital system implements a new diagnostic procedure involving an AI-powered device. A Category III CPT code facilitates the collection of utilization data, which helps in future discussions with payers regarding coverage. - A medical device manufacturer collaborates with clinicians to publish studies on the effectiveness of a new therapy tracked by a Category III CPT code, aiming to demonstrate its value and support its transition to a Category I code. Common pitfalls - • Misinterpreting Category III CPT codes as a guarantee of reimbursement, as payment remains at payer discretion and is often denied given the 'investigational' status. - • Failing to recognize the temporary nature of Category III CPT codes; they sunset after five years if not converted to Category I or renewed. - • Neglecting to collect robust clinical data during the Category III phase, which is crucial for demonstrating efficacy and eventually achieving Category I CPT code status and broader reimbursement. - • Assuming that FDA clearance or approval automatically leads to CPT codes and reimbursement; these are separate processes with distinct criteria. ## Frequently asked questions How do Category III CPT codes impact MedTech companies? [Category III CPT codes](/terms/category-iii-codes) offer a formal pathway for tracking new procedures, which is vital for MedTech companies developing novel device-enabled treatments. They provide data necessary for pursuing broader reimbursement and market adoption, even if initial payment is limited. What is the typical timeframe for a Category III CPT code? Are Category III CPT codes mandatory for new procedures? ## Related terms Grouped by theme ### Editor's picks · Hand-selected related concepts [ Reimbursement CPT Codes(CPT) AMA-maintained codes that describe medical procedures and services. ](/terms/cpt-codes) ### More in Reimbursement · Same category [ Reimbursement 340B Drug Pricing Program(340B) Federal program providing discounted drugs to safety-net providers. ](/terms/340b)[ Reimbursement Ambulatory Payment Classification(APC) The Medicare grouping system that determines hospital outpatient payment amounts under OPPS, analogous to MS-DRGs for inpatient. ](/terms/apc)[ Reimbursement ASC Site-of-Service Shift Migration of procedures from hospitals to ambulatory surgery centers. ](/terms/asc-shift)[ Reimbursement Budget Impact Model(BIM) Financial model that estimates the total cost consequences of adopting a new technology to a payer's budget over a defined horizon. ](/terms/budget-impact-model) Cited by Where this term appears across MedTech Terms. Ecosystems (1) - [Hospital Buyer & Reimbursement](/ecosystems/hospital-buyer) ## Primary references 3 sources Link health: 3 verified · last checked 2026-06-20 AMA· 2 AdvaMed· 1 1. [1 AMA Category III process Verified AMA · ama-assn.org ](https://www.ama-assn.org/practice-management/cpt/cpt-category-iii-codes) 2. [2 AMA CPT Resources Verified AMA · ama-assn.org ](https://www.ama-assn.org/practice-management/cpt) 3. [3 AdvaMed - Payment & Coverage Verified AdvaMed · advamed.org ](https://www.advamed.org/our-work/) Inline markers like \[1\] jump to the matching reference above. Sponsor note ### Need cybersecurity expertise on a connected-device launch? Blue Goat Cyber helps MedTech teams ship connected products that hospital security teams will actually procure. [Book a 30-minute discovery session](https://go.bluegoatcyber.com/meetings/blue-goat-cyber/discovery-session) - No obligation - Expert-led from minute one - NDA available on request MedTech Terms is a community resource sponsored by [Blue Goat Cyber](https://bluegoatcyber.com). Definitions are independent of any vendor. On this term Category Reimbursement Sources 3 Updated 5/5/2026 [Compare with another term](/compare?a=category-iii-cpt) Learn in 60 seconds Card Lesson Quiz Temporary CPT code for emerging technologies and services. - · Often the first formal CPT pathway for a novel device-enabled procedure. - · Payment is at payer discretion; many commercial payers deny Category III claims as investigational. - · Codes sunset after five years if not converted or renewed. Remember this Watch out: Misinterpreting Category III CPT codes as a guarantee of reimbursement, as payment remains at payer discretion and is often denied given the 'investigational' status. Related terms - [CPT Codes(CPT) ](/terms/cpt-codes) You may also need Auto-suggested from Reimbursement and shared keywords. - [Category III CPT Codes ](/terms/category-iii-codes) - [Current Procedural Terminology Codes(CPT) ](/terms/cpt) - [Transitional Pass-Through Payment(TPT) ](/terms/tpt) - [Proprietary Laboratory Analyses Codes(PLA) ](/terms/pla-codes) - [Transitional Coverage for Emerging Technologies(TCET) ](/terms/tcet) - [Budget Impact Model(BIM) ](/terms/budget-impact-model) [All Reimbursement terms](/terms?cat=Reimbursement) MedTech Terms An authoritative, plain-language reference for the regulatory, quality, cybersecurity, and software terms that shape modern medical devices. 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