ICD-10-CM 2027

ICD-10 code for breast

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Breast”. Page updated September 29, 2026.

About coding breast

The official ICD-10-CM index doesn't give a single default code for breast; the code depends on the details below.

buds E30.1 — Precocious puberty
in newborn P96.89 — Other specified conditions originating in the perinatal period
dense R92.3 — Mammographic density found on imaging of breast
Imaging Reporting and Data System (BI-RADS): A R92.31 — Mammographic fatty tissue density of breast
Imaging Reporting and Data System (BI-RADS): B R92.32 — Mammographic fibroglandular density of breast
Imaging Reporting and Data System (BI-RADS): C R92.33 — Mammographic heterogeneous density of breast
Imaging Reporting and Data System (BI-RADS): D R92.34 — Mammographic extreme density of breast
Imaging Reporting and Data System (BI-RADS): 1 R92.31 — Mammographic fatty tissue density of breast
Imaging Reporting and Data System (BI-RADS): 2 R92.32 — Mammographic fibroglandular density of breast
Imaging Reporting and Data System (BI-RADS): 3 R92.33 — Mammographic heterogeneous density of breast
Imaging Reporting and Data System (BI-RADS): 4 R92.34 — Mammographic extreme density of breast
nodule N63.0 — Unspecified lump in unspecified breast

What is the ICD-10 code for buds breast?: E30.1 — Precocious puberty.
What is the ICD-10 code for dense breast?: R92.3 — Mammographic density found on imaging of breast (header code; choose a more specific subcode).
What is the ICD-10 code for nodule breast?: N63.0 — Unspecified lump in unspecified breast.