Summary & Overview
HCPCS G0564: Implantable 365-Day Interstitial Glucose Sensor Insertion
HCPCS Level II code G0564 represents the creation of a subcutaneous pocket and insertion of a 365-day implantable interstitial glucose sensor, including system activation and patient training. This code captures the full-service episode of device implantation and initial setup for long-term continuous glucose monitoring, a growing modality in diabetes management. Its national relevance stems from increasing adoption of implantable sensors for improved glycemic monitoring, care coordination, and potential impacts on outpatient procedural billing.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what the code covers clinically and operationally, the typical sites of service where the procedure is performed, and the payer landscape addressed in the analysis. The publication provides benchmarks and policy-oriented context useful for billing administrators and revenue cycle teams, as well as clarification on the clinical service represented by this code.
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes. The content is intended for national audiences seeking clarity on coding and service definition for HCPCS Level II code G0564.
Billing Code Overview
HCPCS Level II code G0564 describes the creation of a subcutaneous pocket with insertion of a 365-day implantable interstitial glucose sensor, and includes system activation and patient training. This procedure represents a single event covering device placement, initial activation, and the education required for patient use.
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Service type: Implantation procedure for continuous glucose monitoring system with activation and patient training
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Typical site of service: Ambulatory surgical center or hospital outpatient facility
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with type 1 or insulin-requiring type 2 diabetes who requires continuous interstitial glucose monitoring for 365 days to optimize glycemic control. The patient presents to an outpatient ambulatory surgery center or hospital outpatient department for device placement. Pre-procedure assessment includes review of anticoagulation, skin integrity at proposed insertion site (usually upper arm or abdomen), and confirmation of device indication. Under local anesthesia with or without monitored anesthesia care, the clinician creates a subcutaneous pocket and inserts the 365-day implantable interstitial glucose sensor. The procedure includes system activation, programming of the transmitter/receiver, and structured patient training on device care, signal troubleshooting, alarm settings, and when to seek medical attention. Post-procedure workflow includes a brief observation period for hemostasis and wound check, discharge instructions, scheduling follow-up for remote monitoring and device checks, and documentation of device serial number and training provided.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the procedure requires substantially greater work than typical due to complexity (document rationale and additional work). |
23 |