Summary & Overview
CPT 0447T: Removal of Implanted Interstitial Glucose Sensor
CPT code 0447T describes the surgical removal and incision closure for a previously placed interstitial glucose sensor used in continuous glucose monitoring. This code captures a specific minor operative service for explanting a subcutaneous CGM sensor, commonly from the upper arm. The procedure is relevant nationally as CGM use grows across diabetes care, driving utilization of insertion and removal services and attention to billing specificity for implanted sensor management.
Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical procedure represented by the code, how it is typically delivered in outpatient settings, and what benchmarks and policy considerations commonly accompany minor device explantation codes such as documentation expectations, site-of-service implications, and payor coverage patterns. The publication highlights common modifiers used in practice and summarizes typical billing contexts, while noting where input data is not available.
The piece is intended to help coders, practice managers, and policy analysts understand the code's clinical meaning, common billing scenarios, and the national payer landscape to inform accurate claims submission and review.
Billing Code Overview
CPT code 0447T describes removal of a previously placed interstitial glucose sensor from a subcutaneous pocket, typically located in the upper arm, with closure of the incision. This procedure is a minor surgical removal of a continuous glucose monitoring (CGM) sensor that had been placed beneath the skin in a subcutaneous pocket.
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Service type: Surgical removal of implanted/inserted sensor (minor outpatient procedure)
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Typical site of service: Outpatient clinic, ambulatory surgical center, or physician office; procedure is commonly performed at the upper arm site where the sensor was originally implanted.
Data not available in the input for associated taxonomies, ICD-10 diagnoses, related codes, and service line.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with a previously inserted interstitial continuous glucose monitoring (CGM) sensor placed in a subcutaneous pocket of the upper arm who presents for device removal after the sensor’s functional lifespan, failure, infection, or patient request. The procedure is commonly scheduled in an ambulatory surgery center, outpatient procedure clinic, or office-based surgical suite. The workflow includes pre-procedure verification and consent, wound site evaluation and marking, local anesthetic infiltration, a small incision over the sensor pocket, blunt and sharp dissection to expose and remove the sensor and any retention sutures or capsule, irrigation as needed, hemostasis, layered closure of the pocket and skin, and sterile dressing application. Post-procedure instructions address wound care, activity restrictions, and signs of infection. Typical payors for this service include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Unspecified | Data not typically used for reporting; avoid when a standard modifier applies. |
11 | Principal Physician Discretionary |