Infct of amniotic sac and membrns, unsp, first tri, fetus 5

This code signifies an infection of the amniotic sac and membranes (chorioamnionitis) occurring during the first trimester of pregnancy. The specific infectious agent is not identified, and the code indicates that the infection is affecting fetus 5 in a multiple gestation.

Apply this code when documentation confirms chorioamnionitis in a pregnancy that is still in the first trimester, and the causative organism is not specified. This code is specifically for the fifth fetus in a multifetal pregnancy. Documentation should clearly state the trimester and the affected fetus number.

• Ensure the documentation specifies "unspecified" infection if the organism is unknown; otherwise, a more specific code may be appropriate.
• Verify the trimester of pregnancy and the specific fetus affected in a multiple gestation to ensure correct assignment.
• Do not use this code if the infection is identified as bacterial, viral, or fungal; instead, use a more specific code from the O41.1- series.