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

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 identified, and it refers to the first fetus in a multiple gestation. This condition can lead to significant maternal and fetal complications.

Use this code when documentation clearly indicates an unspecified infection of the amniotic sac and membranes in a pregnant patient during her first trimester. This diagnosis is typically made based on clinical signs, symptoms, and laboratory findings suggestive of intra-amniotic infection. Documentation should specify "fetus 1" if applicable.

• Ensure the documentation explicitly states "unspecified" infection and "first trimester."
• Verify the fetal number if it's a multiple gestation; this code is specific to fetus 1.
• Do not use this code if a specific organism causing the infection is identified; instead, use a more specific code from the O41.1- series.