G0279 HCPCS code: Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066)

G0279 is the HCPCS Level II code for diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066). In 2024 Medicare paid an average of $24.23 per service for G0279 across 1,000,625 services. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. The NCCI unit limit is 1 per day on outpatient hospital claims. Medicare volume rose 2% from 2022 to 2024 (978,314 to 1,000,625 services). In 2024, about 16,544 clinicians billed Medicare for G0279 for 870,234 beneficiaries; California, Florida, New York accounted for 24% of services.

Code details

Who bills G0279 (2024)

Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.

Medicare utilization for G0279, 2022–2024

States with the most G0279 services (2024)

NCCI unit limits (MUE)

Medicare policy articles for this code

• A56448: Billing and Coding: Breast Imaging Mammography/Breast Echography (Sonography)/Breast MRI/Ductography (CGS Administrators, LLC (MAC - Part A, MAC - Part B))
• A57848: Billing and Coding: Tomosynthesis-Guided Breast Biopsy (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B))
• A58559: Billing and Coding: Independent Diagnostic Testing Facilities (IDTF) (Palmetto GBA (MAC - Part B))

Covered diagnoses (156 ICD-10-CM codes)

The diagnoses most often listed as covered in the policy articles above:

Showing 10 of 156. The full list, non-covered diagnoses and CSV export are in Caduvo.

What changed for G0279

• 2015-01-01: G0279 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 G0279?

G0279 is the HCPCS Level II code for diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066). Short descriptor: "Tomosynthesis, mammo".

How much does Medicare pay for G0279?

In 2024, the average Medicare payment was $24.23 per service (average allowed $33.19).

Does Medicare cover G0279?

Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.

Which diagnoses support coverage for G0279?

Medicare policy articles that cite G0279 list 156 covered ICD-10-CM diagnosis codes across 3 articles. The most cited include C45.9 (Mesothelioma, unspecified), C50.011 (Malignant neoplasm of nipple and areola, right female breast), C50.012 (Malignant neoplasm of nipple and areola, left female breast). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.

How many units of G0279 can be billed per day?

1 on outpatient hospital claims; 1 on practitioner claims (NCCI medically unlikely edits).

Related G02 codes

• G0202 — Screening mammography, bilateral (2-view study of each breast), including computer-aided detection (cad) when performed
• G0204 — Diagnostic mammography, including computer-aided detection (cad) when performed; bilateral
• G0206 — Diagnostic mammography, including computer-aided detection (cad) when performed; unilateral
• G0219 — Pet imaging whole body; melanoma for non-covered indications
• G0235 — Pet imaging, any site, not otherwise specified
• G0237 — Therapeutic procedures to increase strength or endurance of respiratory muscles, face to face, one on one, each 15 minutes (includes monitoring)
• G0238 — Therapeutic procedures to improve respiratory function, other than described by g0237, one on one, face to face, per 15 minutes (includes monitoring)
• G0239 — Therapeutic procedures to improve respiratory function or increase strength or endurance of respiratory muscles, two or more individuals (includes monitoring)
• G0245 — Initial physician evaluation and management of a diabetic patient with diabetic sensory neuropathy resulting in a loss of protective sensation (lops) which must include: (1) the diagnosis of lops, (2) a patient history, (3) a physical examination that consists of at least the following elements: (a) visual inspection of the forefoot, hindfoot and toe web spaces, (b) evaluation of a protective sensation, (c) evaluation of foot structure and biomechanics, (d) evaluation of vascular status and skin integrity, and (e) evaluation and recommendation of footwear and (4) patient education
• G0246 — Follow-up physician evaluation and management of a diabetic patient with diabetic sensory neuropathy resulting in a loss of protective sensation (lops) to include at least the following: (1) a patient history, (2) a physical examination that includes: (a) visual inspection of the forefoot, hindfoot and toe web spaces, (b) evaluation of protective sensation, (c) evaluation of foot structure and biomechanics, (d) evaluation of vascular status and skin integrity, and (e) evaluation and recommendation of footwear, and (3) patient education
• G0247 — Routine foot care by a physician of a diabetic patient with diabetic sensory neuropathy resulting in a loss of protective sensation (lops) to include, the local care of superficial wounds (i.e. superficial to muscle and fascia) and at least the following if present: (1) local care of superficial wounds, (2) debridement of corns and calluses, and (3) trimming and debridement of nails
• G0248 — Demonstration, prior to initiation of home inr monitoring, for patient with either mechanical heart valve(s), chronic atrial fibrillation, or venous thromboembolism who meets medicare coverage criteria, under the direction of a physician; includes: face-to-face demonstration of use and care of the inr monitor, obtaining at least one blood sample, provision of instructions for reporting home inr test results, and documentation of patient's ability to perform testing and report results

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 G0279
• Watch G0279 for fee, coverage and descriptor changes
• Build a full Medicare revenue model for G0279

Sources: CMS HCPCS Level II release October 2026; 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.

All G codes · HCPCS lookup