R92.321 Mammographic fibroglandular density, right breast

Billable ICD-10-CM code, FY2026.

Applies from R92.3 Mammographic density found on imaging of breast

Code also

• , if applicable, inconclusive mammogram (R92.2)

Applies from R92.32 Mammographic fibroglandular density of breast

Applicable to

• Breast Imaging Reporting and Data System (BI-RADS): B
• Breast Imaging Reporting and Data System (BI-RADS): 2

MS-DRG index

Defines the logic of DRG(s) 600-601 in MDC 09.

Code annotations containing back-references to R92.321

Back-references to R92

• Type 2 Excludes: N64.5 Other signs and symptoms in breast ("abnormal findings on diagnostic imaging of breast (R92.-)")
• Type 1 Excludes: R22 Localized swelling, mass and lump of skin and subcutaneous tissue ("abnormal findings on diagnostic imaging (R90-R93)")

Nearby codes

• R92.31 Mammographic fatty tissue density of breast
• R92.311 Mammographic fatty tissue density, right breast
• R92.312 Mammographic fatty tissue density, left breast
• R92.313 Mammographic fatty tissue density, bilateral breasts
• R92.32 Mammographic fibroglandular density of breast
• R92.321 Mammographic fibroglandular density, right breast (this code)
• R92.322 Mammographic fibroglandular density, left breast
• R92.323 Mammographic fibroglandular density, bilateral breasts
• R92.33 Mammographic heterogeneous density of breast
• R92.331 Mammographic heterogeneous density, right breast
• R92.332 Mammographic heterogeneous density, left breast