Summary & Overview
HCPCS G0565: Removal and Replacement of 365-Day Implantable Glucose Sensor
HCPCS Level II code G0565 represents a combined procedure: removal of an implantable interstitial glucose sensor, creation of a new subcutaneous pocket at a different anatomic site, insertion of a replacement 365-day implantable sensor, and activation of the system. This code matters nationally as implantable continuous glucose monitoring technology expands and payers define coverage and payment policies for long-term implantable devices. The code is relevant to endocrinology, diabetes management, and ambulatory surgical services.
Key payers covered in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what G0565 represents clinically and operationally, summary benchmarks where available, typical sites of service, and discussion of common billing modifiers. The publication also highlights clinical context for use of 365-day implantable sensors and the procedure elements captured by the code. Information not provided in the input—such as specific associated taxonomies, ICD-10 diagnoses, related codes, and payer-specific coverage criteria—is noted as "Data not available in the input." This summary is intended to orient clinicians, coding professionals, and policy analysts to the key features and national relevance of HCPCS Level II code G0565.
Billing Code Overview
HCPCS Level II code G0565 describes the removal of an implantable interstitial glucose sensor with creation of a subcutaneous pocket at a different anatomic site and insertion of a new 365-day implantable sensor, including system activation. This procedure involves explanting an existing long-term subcutaneous glucose sensor and implanting a replacement sensor intended for up to 365 days of use.
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Service type: Implantable glucose sensor removal and replacement with system activation
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Typical site of service: Ambulatory surgical center or hospital outpatient department, depending on facility capabilities and clinician preference
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with type 1 diabetes implanted previously with a 365-day interstitial continuous glucose monitoring (CGM) sensor presents for elective replacement due to device end-of-life and localized sensor discomfort at the original site. The procedure includes removal of the existing implantable interstitial glucose sensor, creation of a new subcutaneous pocket at a different anatomic site, and insertion of a new 365-day implantable sensor with system activation.
Pre-procedure workflow includes device interrogation, review of anticoagulation status, informed consent, and marking of a new implant site (typically upper abdomen or posterior upper arm). The patient receives local anesthesia with or without conscious sedation in an outpatient ambulatory surgery center or office-based procedure room. The old device is explanted through a small incision, a new subcutaneous pocket is created at a different anatomic site to reduce infection risk and address tissue changes, the new 365-day sensor is implanted and secured, and the system is activated and calibrated per manufacturer protocol. Post-procedure monitoring includes wound care instructions, short observation for bleeding or adverse effects, and scheduling of follow-up for sensor function and site evaluation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the procedure requires substantially greater work than typical (e.g., extensive scar tissue removal during sensor explantation). |