C46.3
BillableKaposi's sarcoma of lymph nodes
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
A cancer of blood vessel cells that develops in the lymph nodes, which are part of the immune system throughout the body.
Coding Tips
- •Lymph node involvement indicates systemic disease; document which lymph node regions are affected (cervical, axillary, inguinal, etc.)
- •Distinguish from primary lymphoma by confirming the diagnosis is Kaposi's sarcoma with lymph node involvement rather than a lymphoid malignancy
Clinical Significance
Kaposi sarcoma involving lymph nodes indicates systemic dissemination and a more advanced stage of disease. Lymph node involvement carries significant prognostic implications and typically requires systemic therapy rather than localized treatment, reflecting higher resource utilization.
Documentation Requirements
- ✓Pathology-confirmed Kaposi sarcoma in lymph node tissue (biopsy or excision)
- ✓Specific lymph node regions involved (cervical, axillary, inguinal, mediastinal, etc.)
- ✓Imaging confirming lymphadenopathy (CT, PET scan findings)
- ✓Human Immunodeficiency Virus status and treatment response
- ✓Presence of concurrent skin or visceral Kaposi sarcoma involvement
Commonly Confused Codes
C81-C86 (Hodgkin and non-Hodgkin lymphomas) — primary lymphoid malignancies, not Kaposi sarcoma with lymph node involvementC46.0-C46.2 (Kaposi sarcoma of skin/soft tissue/palate) — different sites; if lymph nodes are also involved, code C46.3 additionallyC77._ (Secondary and unspecified malignant neoplasm of lymph nodes) — metastatic disease to lymph nodes from non-Kaposi primaryR59._ (Enlarged lymph nodes) — symptom code, not a cancer diagnosis