Human immunodeficiency virus [HIV] disease

This code signifies a confirmed diagnosis of symptomatic human immunodeficiency virus (HIV) infection, encompassing all stages from initial symptomatic presentation to acquired immunodeficiency syndrome (AIDS). It indicates active disease progression and clinical manifestations directly attributable to HIV.

Apply this code when documentation clearly states a diagnosis of HIV disease, AIDS, or AIDS-related complex (ARC). This includes patients presenting with opportunistic infections, malignancies, or other conditions directly linked to their compromised immune system due to HIV.

• Do not code this with Z21 (asymptomatic HIV infection status); these are mutually exclusive.
• Ensure physician documentation explicitly states "HIV disease," "AIDS," or "symptomatic HIV infection" to support its use.
• Sequence this code first when the reason for the encounter is directly related to the patient's HIV disease.