C46.4 Kaposi's sarcoma of gastrointestinal sites

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

Applies from C46 Kaposi's sarcoma

Code first

• any human immunodeficiency virus [HIV] disease (B20)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 21 — Lymphoma and Other Cancers
• CMS-HCC V22: HCC 10 — Lymphoma and Other Cancers
• RxHCC V08: HCC 20 — Lung, Kidney, and Other Cancers; Secondary Cancer of Lymph Nodes and Other Sites
• ESRD V24: HCC 10

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 176.3 Kaposi's sarcoma, gastrointestinal sites

Code annotations containing back-references to C46.4

Back-references to C46

• Type 2 Excludes: D47.Z2 Castleman disease ("Kaposi's sarcoma (C46.-)")

Diagnosis Index entries for C46.4

• Kaposi's › sarcoma › colon
• Kaposi's › sarcoma › gastrointestinal organ
• Kaposi's › sarcoma › rectum
• Kaposi's › sarcoma › stomach
• Sarcoma (of) › Kaposi's › colon
• Sarcoma (of) › Kaposi's › gastrointestinal organ
• Sarcoma (of) › Kaposi's › rectum
• Sarcoma (of) › Kaposi's › stomach

Nearby codes

• C46 Kaposi's sarcoma
• C46.0 Kaposi's sarcoma of skin
• C46.1 Kaposi's sarcoma of soft tissue
• C46.2 Kaposi's sarcoma of palate
• C46.3 Kaposi's sarcoma of lymph nodes
• C46.4 Kaposi's sarcoma of gastrointestinal sites (this code)
• C46.5 Kaposi's sarcoma of lung
• C46.50 Kaposi's sarcoma of unspecified lung
• C46.51 Kaposi's sarcoma of right lung
• C46.52 Kaposi's sarcoma of left lung
• C46.7 Kaposi's sarcoma of other sites