Kaposi's sarcoma, soft tissue

This code identifies a rare, malignant vascular tumor (Kaposi's sarcoma) specifically affecting the soft tissues of the body. It typically presents as lesions, nodules, or plaques that can appear on various soft tissue sites, distinct from cutaneous or visceral involvement.

Apply this code when documentation clearly indicates Kaposi's sarcoma originating in or primarily affecting soft tissues, such as muscle, fat, or connective tissue. This is appropriate for cases where the tumor is not primarily cutaneous, lymph node-based, or visceral.

• Differentiate from Kaposi's sarcoma affecting other sites (e.g., skin, lymph nodes, viscera) which have separate codes.
• Ensure documentation specifies "soft tissue" involvement to justify this particular code.
• Consider an additional code for the underlying cause, such as HIV infection (042), if applicable and documented.