Stages, sequencing are key. There's reason to be optimistic about the current state of human immunodeficiency virus (HIV) in the US. Though the Centers for Disease Control and Prevention (CDC) estimates that 15 percent of the 1.1 million Americans have the infection and have not been formally diagnosed, since 2010, the numbers of those infected has continued to decrease. All the more reason, then, to sharpen your coding skills by answering the following three questions related to HIV/AIDS diagnosis coding. Question1:What is the correct code to use for a patient who has HIV? Question 2:Once a patient has been diagnosed with HIV, what is the correct code sequence when the patient is seen for other conditions? Question 3:What is the appropriate diagnosis code(s) for a woman who is pregnant, who is giving birth, or who has given birth, and who has been diagnosed with HIV? Think you know the answers?