A patient known to be positive for HIV is admitted to the hospital with high fever,malaise,and cough.PCP pneumonia is suspected and is ruled out.Tests reveal that the patient has infectious mononucleosis.

Question

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B20 is the code for HIV and B59 is the code for infectious mononucleosis. Since the patient was initially suspected to have PCP pneumonia due to their HIV status, it would be appropriate to include both B20 and B59 codes. However, since further tests ruled out PCP pneumonia, only the B59 code would be necessary. Additionally, the Z21 code should be included to indicate that the patient is positive for HIV but does not have any current opportunistic infections. The B27.90 code is not necessary as it is for unspecified infectious mononucleosis, whereas the patient's diagnosis is confirmed to be infectious mononucleosis.

A Patient Known to Be Positive for HIV Is Admitted