ICD-10-CM 2027

ICD-10 code for Carcinoma-in-situ

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

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

About coding Carcinoma-in-situ

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

breast NOS D05.9 — Unspecified type of carcinoma in situ of breast
specified type NEC D05.8 — Other specified type of carcinoma in situ of breast
epidermoid
with questionable stromal invasion
cervix D06.9 — Carcinoma in situ of cervix, unspecified
specified site NEC
unspecified site D06.9 — Carcinoma in situ of cervix, unspecified
Bowen's type
intraductal
breast D05.1 — Intraductal carcinoma in situ of breast
specified site NEC
unspecified site D05.1 — Intraductal carcinoma in situ of breast
lobular
with
infiltrating duct
breast (female) C50.91 — Malignant neoplasm of breast of unspecified site, female
male C50.92 — Malignant neoplasm of breast of unspecified site, male
specified site NEC
unspecified site (female) C50.91 — Malignant neoplasm of breast of unspecified site, female
male C50.92 — Malignant neoplasm of breast of unspecified site, male
intraductal
breast D05.8 — Other specified type of carcinoma in situ of breast
specified site NEC
unspecified site (female) D05.8 — Other specified type of carcinoma in situ of breast
breast D05.0 — Lobular carcinoma in situ of breast
specified site NEC
unspecified site D05.0 — Lobular carcinoma in situ of breast
squamous cell
with questionable stromal invasion
cervix D06.9 — Carcinoma in situ of cervix, unspecified
specified site NEC
unspecified site D06.9 — Carcinoma in situ of cervix, unspecified

What is the ICD-10 code for breast nos carcinoma-in-situ?: D05.9 — Unspecified type of carcinoma in situ of breast (header code; choose a more specific subcode).