Kaposi's sarcoma of lymph nodes

This code signifies a malignant vascular tumor, Kaposi's sarcoma, specifically affecting the lymph nodes. This condition is often associated with human herpesvirus 8 (HHV-8) infection and frequently seen in immunocompromised individuals, such as those with HIV/AIDS. The involvement of lymph nodes indicates a systemic spread or primary manifestation within the lymphatic system.

Apply this code when documentation clearly states a diagnosis of Kaposi's sarcoma with confirmed involvement of any lymph node(s). This includes both primary lymph node involvement and metastatic spread to lymph nodes from another Kaposi's sarcoma site. Supporting documentation would include pathology reports confirming Kaposi's sarcoma in lymph node tissue, or physician notes explicitly stating lymph node involvement.

• Always sequence this code after the underlying cause, such as HIV disease (B20), if applicable and documented.
• Do not use this code for Kaposi's sarcoma affecting other sites; specific codes exist for cutaneous, gastrointestinal, or pulmonary involvement.
• Ensure the documentation specifies "lymph nodes" and not just "lymphatic system" generally, as this code is specific to nodal involvement.