Placentitis, second trimester, not applicable or unspecified

This code signifies inflammation of the placenta occurring during the second trimester of pregnancy. Placentitis can be infectious or non-infectious and may lead to adverse pregnancy outcomes.

This code is appropriate when documentation specifies placentitis in a pregnant patient between 14 weeks 0 days and 27 weeks 6 days gestation, and further specificity regarding the type of placentitis or its applicability is not provided. It is supported by pathology reports, ultrasound findings, or clinical notes indicating placental inflammation.

• Ensure the documentation clearly states "second trimester" or provides gestational age falling within the second trimester.
• If the type of placentitis (e.g., infectious, non-infectious) is known, a more specific subcategory code should be used.
• Always sequence this code after the primary obstetric complication or condition if applicable.