C54.0 Malignant neoplasm of isthmus uteri

Billable ICD-10-CM code, FY2026.

Applicable to

• Malignant neoplasm of lower uterine segment

Risk adjustment (HCC)

• CMS-HCC V28: HCC 23 — Prostate, Breast, and Other Cancers and Tumors
• CMS-HCC V22: HCC 12 — Breast, Prostate, and Other Cancers and Tumors
• ESRD V24: HCC 12

MS-DRG index

Defines the logic of DRG(s) 736-741 in MDC 13.

Approximate ICD-9-CM (GEMs)

• 182.1 Malignant neoplasm of isthmus

Diagnosis Index entries for C54.0

• Sarcoma (of) › endometrial (stromal) › isthmus
• Sarcoma (of) › stromal (endometrial) › isthmus

Nearby codes

• C54 Malignant neoplasm of corpus uteri
• C54.0 Malignant neoplasm of isthmus uteri (this code)
• C54.1 Malignant neoplasm of endometrium
• C54.2 Malignant neoplasm of myometrium
• C54.3 Malignant neoplasm of fundus uteri
• C54.8 Malignant neoplasm of overlapping sites of corpus uteri
• C54.9 Malignant neoplasm of corpus uteri, unspecified