Oth viral diseases complicating pregnancy, second trimester

This code signifies a maternal viral infection, other than those specified elsewhere (e.g., HIV, hepatitis, rubella), that is actively affecting the pregnancy during the second trimester. It indicates that the viral disease is a complicating factor in the current pregnancy.

Apply this code when a pregnant patient in her second trimester is diagnosed with a viral illness (e.g., influenza, parvovirus B19, cytomegalovirus) that is documented by the provider as complicating the pregnancy. Documentation should clearly link the viral disease to the pregnancy and specify the second trimester.

• Always sequence this code as a primary diagnosis when the viral disease is the main reason for the encounter, or as a secondary diagnosis when it complicates another primary condition.
• Ensure the medical record explicitly states the viral disease is complicating the pregnancy and confirms the second trimester.
• Do not use for viral diseases specifically coded elsewhere as complicating pregnancy (e.g., O98.0-O98.4, O98.6-O98.8).