Question

using the icd-10-cm coding manual, assign the missing icd-10-cm code in the space provided for the following case. use the 8 steps for correct coding. this 42-year-old hiv positive male has a fever and shortness of breath. the diagnostic workup includes a chest x-ray and sputum culture. the final diagnosis is pneumocystis pneumonia due to aids. icd-10-cm code: , b59

Explanation:

1. The case specifies a final diagnosis of Pneumocystis pneumonia due to AIDS.
2. In ICD-10-CM, when an opportunistic infection (like Pneumocystis pneumonia, coded B59) is documented as due to HIV/AIDS, the principal diagnosis is the HIV-related infection code. B20 is the ICD-10-CM code for Human immunodeficiency virus [HIV] disease, which is used when the patient has an HIV-related opportunistic illness (here, Pneumocystis pneumonia) due to AIDS.
3. Following ICD-10-CM guidelines, B20 is reported first, followed by the code for the specific opportunistic infection (B59).

Answer:

B20