Infct of amniotic sac and membrns, unsp, first tri, fetus 3

This code signifies an infection of the amniotic sac and membranes (chorioamnionitis) occurring during the first trimester of pregnancy. The specific type of infection is not documented, and it indicates that the infection is affecting the third fetus in a multiple gestation.

Use this code when documentation confirms chorioamnionitis in a pregnant patient during her first trimester, and the infection type is not specified. This code is specifically for the third fetus in a multifetal pregnancy. Documentation should clearly state the trimester, the presence of infection, and the fetal number affected.

• Ensure the documentation specifies "unspecified" infection type and "first trimester."
• Verify the fetal number (third fetus) is explicitly stated or clearly implied in the context of a multiple gestation.
• Do not use if the infection type is known or if the trimester is not the first.