When an opportunistic infection, such as Kaposi's sarcoma of the lung, is documented in an HIV-positive patient's record, how may the coder report this diagnosis?

Question

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B20 is used to indicate HIV disease, and C46.50 is the code for Kaposi's sarcoma, unspecified site, which can be used for Kaposi's sarcoma of the lung when a more specific site code is not provided. Both codes are necessary to fully capture the patient's diagnoses.

When an Opportunistic Infection, Such as Kaposi's Sarcoma of the Lung