Other viral diseases complicating pregnancy, unsp trimester

This code signifies a maternal diagnosis of a viral infection, other than those specifically classified elsewhere (e.g., HIV, hepatitis, rubella, cytomegalovirus, herpes simplex), that is adversely affecting the pregnancy. It indicates that the viral disease is a complication of the pregnancy itself, without specifying the trimester in which the complication occurred.

Use this code when the medical record clearly documents a maternal viral disease, not otherwise specified, that is complicating the pregnancy. This applies when the specific type of viral infection is not identified, or when the documentation does not specify the trimester of pregnancy during which the complication arose. Documentation should explicitly link the viral disease as a complication of the pregnancy.

• Only use this code when the specific viral disease and/or trimester are truly unspecified in the medical record. Query the provider for more specificity if possible.
• Always sequence this code as a secondary diagnosis following the appropriate code for the obstetric condition (e.g., Z3A.xx for weeks of gestation).
• Avoid using this code if a more specific code for the viral disease (e.g., B00-B34) or a more specific O code (e.g., O98.511, O98.512, O98.513) is available and supported by documentation.