C46.9
BillableKaposi's sarcoma, unspecified
HCC Category Mapping
V28HCC 21 — Breast, Prostate, Colorectal and Other Cancers and Tumors
0.545V24HCC 10 — Lymphoma and Other Cancers
0.675ESRDHCC 10 — Lymphoma and Other Cancers
0.000RxHCCHCC 20 — Cancer, Liver and Intrahepatic Bile Duct
0.000What This Code Means
Kaposi's sarcoma diagnosed without specification of where in the body it is located.
Coding Tips
- •This is a non-specific code; use only when the site of Kaposi's sarcoma is truly unspecified or unknown.
- •Query the provider if possible to obtain site-specific information for more accurate coding.
Clinical Significance
Kaposi sarcoma, unspecified should be used only as a last resort when the anatomical site cannot be determined from available documentation. This code may trigger audit scrutiny as site-specific codes are preferred and site information is usually obtainable from pathology or imaging reports.
Documentation Requirements
- ✓Confirmation of Kaposi sarcoma diagnosis (pathology preferred)
- ✓Documentation explaining why the site cannot be determined
- ✓Immunodeficiency status
- ✓Active treatment or surveillance status
- ✓Query the provider for site-specific information if any is available
Commonly Confused Codes
C46.0 (Kaposi sarcoma of skin) — most common site; use if skin involvement is documentedC46.7 (Kaposi sarcoma of other sites) — use when the site IS known but not in the specific code listC80.1 (Malignant (primary) neoplasm, unspecified) — general unspecified cancer code, not Kaposi-specificC46.1-C46.52 (Site-specific Kaposi sarcoma codes) — always preferred over C46.9 when documentation supports