C8906 HCPCS code: Magnetic resonance imaging with contrast, breast; bilateral

C8906 is the HCPCS Level II code for magnetic resonance imaging with contrast, breast; bilateral. Its Medicare coverage code is D (Special coverage instructions apply): Medicare covers it when its national or local coverage criteria are met. The NCCI unit limit is 1 per day on outpatient hospital claims.

Code details

NCCI unit limits (MUE)

Medicare policy articles for this code

• A52849: Billing and Coding: Breast Imaging: Breast Echography (Sonography)/Breast MRI/Ductography (National Government Services, Inc. (MAC - Part A, MAC - Part B))
• A56448: Billing and Coding: Breast Imaging Mammography/Breast Echography (Sonography)/Breast MRI/Ductography (CGS Administrators, LLC (MAC - Part A, MAC - Part B))

Covered diagnoses (173 ICD-10-CM codes)

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

Showing 10 of 173. The full list, non-covered diagnoses and CSV export are in Caduvo.

What changed for C8906

• 2001-10-01: C8906 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 C8906?

C8906 is the HCPCS Level II code for magnetic resonance imaging with contrast, breast; bilateral. Short descriptor: "Mri w/cont, breast, bi".

Does Medicare cover C8906?

Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.

Which diagnoses support coverage for C8906?

Medicare policy articles that cite C8906 list 173 covered ICD-10-CM diagnosis codes across 2 articles. The most cited include C50.011 (Malignant neoplasm of nipple and areola, right female breast), C50.012 (Malignant neoplasm of nipple and areola, left female breast), C50.021 (Malignant neoplasm of nipple and areola, right male breast). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.

How many units of C8906 can be billed per day?

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

Related C89 codes

• C8900 — Magnetic resonance angiography with contrast, abdomen
• C8901 — Magnetic resonance angiography without contrast, abdomen
• C8902 — Magnetic resonance angiography without contrast followed by with contrast, abdomen
• C8903 — Magnetic resonance imaging with contrast, breast; unilateral
• C8904 — Magnetic resonance imaging without contrast, breast; unilateral
• C8905 — Magnetic resonance imaging without contrast followed by with contrast, breast; unilateral
• C8907 — Magnetic resonance imaging without contrast, breast; bilateral
• C8908 — Magnetic resonance imaging without contrast followed by with contrast, breast; bilateral
• C8909 — Magnetic resonance angiography with contrast, chest (excluding myocardium)
• C8910 — Magnetic resonance angiography without contrast, chest (excluding myocardium)
• C8911 — Magnetic resonance angiography without contrast followed by with contrast, chest (excluding myocardium)
• C8912 — Magnetic resonance angiography with contrast, lower extremity

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Next steps

• Run a reimbursement report for a device billed under C8906
• Watch C8906 for fee, coverage and descriptor changes
• Build a full Medicare revenue model for C8906

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.

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