Final answer:
The correct code for AIDS-related Kaposi's sarcoma of the skin is C46.0. Kaposi's sarcoma is an aggressive cancer in AIDS patients, illustrating severe immunodeficiency.
Step-by-step explanation:
The patient was admitted with AIDS-related Kaposi's sarcoma of the skin. The correct ICD-10 code for Kaposi's sarcoma associated with AIDS is C46.0, which specifically denotes Kaposi's sarcoma as a disease associated with AIDS. Kaposi's sarcoma is a cancer that causes red, raised, scab-like skin lesions and is caused by a herpes virus that is typically harmless to individuals with a healthy immune system. However, in patients with AIDS, whose immune systems are severely compromised, this virus can cause aggressive cancer. These lesions are a hallmark opportunistic infection indicating that the person’s immune system is severely damaged by HIV, which constitutes AIDS, as defined by a CD4 T-cell count below 200 cells/μL or the development of certain opportunistic illnesses.