Infct of amniotic sac and membrns, unsp, third tri, fetus 1

This code signifies an unconfirmed infection of the amniotic sac and membranes (chorioamnionitis) occurring during the third trimester of pregnancy, specifically affecting the first fetus in a multiple gestation. It indicates an inflammatory response within the fetal membranes and amniotic fluid without a specified causative organism or definitive diagnostic findings.

Apply this code when documentation indicates suspected or probable chorioamnionitis in the third trimester for the first fetus, but the specific type of infection or definitive diagnostic confirmation is lacking. This is appropriate when clinical signs and symptoms (e.g., maternal fever, uterine tenderness, foul-smelling amniotic fluid) suggest infection, but culture results or other definitive tests are pending or negative.

• Ensure documentation specifies "unspecified" infection and "third trimester" for accurate code assignment.
• Do not use this code if a specific infectious agent is identified; instead, code the specific chorioamnionitis with the identified organism.
• Confirm this is for the "first fetus" in a multiple gestation; separate codes exist for other fetuses.