Summary & Overview
HCPCS A9278: External Receiver for Interstitial Continuous Glucose Monitoring
HCPCS Level II code A9278 denotes an external receiver/monitor for use with non-durable medical equipment interstitial continuous glucose monitoring (iCGM) systems. This hardware component displays glucose data collected from an implanted or wearable sensor and supports ongoing glucose management for patients with diabetes. The code is relevant nationally as iCGM technology expands and payers refine coverage and coding practices for monitoring components separate from sensors and transmitters.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of what A9278 represents, the typical clinical and site-of-service contexts (home and outpatient use), and what to expect in payer coverage considerations. The publication summarizes benchmarks and policy updates where available, clarifies billing context for device components versus disposable sensors, and outlines clinical relevance for diabetes management workflows. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code A9278 describes a receiver (monitor); external, for use with non-durable medical equipment interstitial continuous glucose monitoring system. This item is a component of an interstitial continuous glucose monitoring (iCGM) solution and functions as the external receiver or monitor that displays glucose data collected from the sensor.
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Service type: Durable medical equipment accessory / monitoring device
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Typical site of service: Home use and outpatient settings where patients use an iCGM system for ongoing glucose monitoring
Clinical & Coding Specifications
Clinical Context
A 48-year-old patient with type 1 diabetes mellitus requires ongoing interstitial continuous glucose monitoring (CGM) to optimize glycemic control. The patient receives a non-durable CGM system consisting of a subcutaneously placed sensor and an external receiver (monitor). The receiver, billed with A9278, is an external device used to display and store glucose trend data transmitted from the sensor. Typical workflow: the endocrinology clinic or durable medical equipment (DME) supplier verifies prescription and medical necessity, documents diagnosis and prior therapies, dispenses the external receiver, provides device education on pairing, display features, and troubleshooting, and schedules follow-up for data review. The receiver is commonly used at home for real-time glucose monitoring and is replaced or upgraded per device lifecycle or warranty. Billing for A9278 may occur in outpatient settings, DME supplier settings, or via home health coordination when the device is furnished for home use.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Use when no modifier applies and standard billing is submitted |