C19 Malignant neoplasm of rectosigmoid junction

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Malignant neoplasm of colon with rectum
• Malignant neoplasm of rectosigmoid (colon)

Excludes1 (never code together)

• malignant carcinoid tumors of the colon (C7A.02-)

Applies from C19 Malignant neoplasm of rectosigmoid junction

Applicable to

• Malignant neoplasm of colon with rectum
• Malignant neoplasm of rectosigmoid (colon)

Excludes1 (never code together)

• malignant carcinoid tumors of the colon (C7A.02-)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 22 — Bladder, Colorectal, and Other Cancers
• CMS-HCC V22: HCC 11 — Colorectal, Bladder, and Other Cancers
• ESRD V24: HCC 11

MS-DRG index

Defines the logic of DRG(s) 374-376 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 154.0 Malignant neoplasm of rectosigmoid junction

Code annotations containing back-references to C19

Back-references to C19

• Type 1 Excludes: C18.7 Malignant neoplasm of sigmoid colon ("malignant neoplasm of rectosigmoid junction (C19)")

Back-references to C19

• Type 1 Excludes: C18.7 Malignant neoplasm of sigmoid colon ("malignant neoplasm of rectosigmoid junction (C19)")

Nearby codes

• C19 Malignant neoplasm of rectosigmoid junction (this code)