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

This code signifies an infection of the amniotic sac and membranes (chorioamnionitis) occurring during the second trimester of pregnancy, where the specific type of infection is not documented. It indicates an inflammatory response within the fetal membranes and amniotic fluid surrounding the first fetus in a multiple gestation or the only fetus in a singleton pregnancy.

Use this code when documentation confirms chorioamnionitis in the second trimester, but the causative organism or specific type of infection is not identified. This code is appropriate for cases where the infection affects the first fetus in a multiple gestation or the single fetus. Supporting documentation would include clinical signs of infection (e.g., maternal fever, uterine tenderness, foul-smelling amniotic fluid) and laboratory findings consistent with chorioamnionitis, without specifying the pathogen.

• Ensure the documentation clearly specifies "second trimester" for accurate trimester assignment.
• Verify that the infection type is truly "unspecified" before using this code; if a specific pathogen is identified, a more precise code should be used.
• Confirm that the documentation refers to "fetus 1" in cases of multiple gestation, or the only fetus in a singleton pregnancy.