A9277 HCPCS code: Transmitter; external, for use with non-durable medical equipment interstitial continuous glucose monitoring system
A9277 is the HCPCS Level II code for transmitter; external, for use with non-durable medical equipment interstitial continuous glucose monitoring system. Its Medicare coverage code is S (Non-covered by Medicare statute): Medicare is barred by law from covering it.
Code details
| Field | Value |
|---|---|
| Section | A codes — Transportation, medical/surgical supplies and miscellaneous |
| Coverage code | S — Non-covered by Medicare statute |
| Pricing indicator | 00 — Not separately priced by Medicare |
| BETOS category | Z2 |
| Added | 2008-01-01 |
| Last action effective | 2023-01-01 |
Medicare policy articles for this code
- A52464: Glucose Monitor - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC)) — mentions this code in its coding guidance
Covered diagnoses (461 ICD-10-CM codes)
The diagnoses most often listed as covered in the policy articles above:
| ICD-10-CM | Diagnosis | Articles listing it |
|---|---|---|
| E08.00 | Diabetes mellitus due to underlying condition with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC) | 1 |
| E08.01 | Diabetes mellitus due to underlying condition with hyperosmolarity with coma | 1 |
| E08.10 | Diabetes mellitus due to underlying condition with ketoacidosis without coma | 1 |
| E08.11 | Diabetes mellitus due to underlying condition with ketoacidosis with coma | 1 |
| E08.21 | Diabetes mellitus due to underlying condition with diabetic nephropathy | 1 |
| E08.22 | Diabetes mellitus due to underlying condition with diabetic chronic kidney disease | 1 |
| E08.29 | Diabetes mellitus due to underlying condition with other diabetic kidney complication | 1 |
| E08.311 | Diabetes mellitus due to underlying condition with unspecified diabetic retinopathy with macular edema | 1 |
| E08.319 | Diabetes mellitus due to underlying condition with unspecified diabetic retinopathy without macular edema | 1 |
| E08.3211 | Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy with macular edema, right eye | 1 |
Showing 10 of 461. The full list, non-covered diagnoses and CSV export are in Caduvo.
What changed for A9277
- 2008-01-01: A9277 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code A9277?
A9277 is the HCPCS Level II code for transmitter; external, for use with non-durable medical equipment interstitial continuous glucose monitoring system. Short descriptor: "External transmitter, cgm".
Does Medicare cover A9277?
Coverage code S — Non-covered by Medicare statute. Medicare is barred by law from covering it.
Which diagnoses support coverage for A9277?
Medicare policy articles that cite A9277 list 461 covered ICD-10-CM diagnosis codes across 1 article. The most cited include E08.00 (Diabetes mellitus due to underlying condition with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)), E08.01 (Diabetes mellitus due to underlying condition with hyperosmolarity with coma), E08.10 (Diabetes mellitus due to underlying condition with ketoacidosis without coma). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.
Related A92 codes
- A9268 — Programmer for transient, orally ingested capsule
- A9269 — Programable, transient, orally ingested capsule, for use with external programmer, per month
- A9270 — Non-covered item or service
- A9272 — Wound suction, disposable, includes dressing, all accessories and components, any type, each
- A9273 — Cold or hot fluid bottle, ice cap or collar, heat and/or cold wrap, any type
- A9274 — External ambulatory insulin delivery system, disposable, each, includes all supplies and accessories
- A9275 — Home glucose disposable monitor, includes test strips
- A9276 — Sensor; invasive (e.g., subcutaneous), disposable, for use with non-durable medical equipment interstitial continuous glucose monitoring system, one unit = 1 day supply
- A9278 — Receiver (monitor); external, for use with non-durable medical equipment interstitial continuous glucose monitoring system
- A9279 — Monitoring feature/device, stand-alone or integrated, any type, includes all accessories, components and electronics, not otherwise classified
- A9280 — Alert or alarm device, not otherwise classified
- A9281 — Reaching/grabbing device, any type, any length, each
Building a device that would bill under a code like this? Caduvo matches a device description to HCPCS/CPT codes, Medicare coverage and payment, and the FDA pathway in one report.
Next steps
- Run a reimbursement report for a device billed under A9277
- Watch A9277 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for A9277
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.