Placenta increta, second trimester

This code signifies a condition where the placental villi invade the myometrium without penetrating the serosa, specifically identified during the second trimester of pregnancy. It represents an abnormal and deep attachment of the placenta to the uterine wall, increasing the risk of severe hemorrhage at delivery.

Use this code when documentation clearly indicates a diagnosis of placenta increta, confirmed to be present during the second trimester. This diagnosis is typically made via ultrasound or MRI, and often suspected in patients with a history of uterine surgery, such as prior C-sections.

• Ensure the documentation explicitly states "increta" and not "accreta" or "percreta," as these are distinct conditions.
• Verify the trimester of pregnancy is clearly documented as the second trimester.
• Always sequence this code as a secondary diagnosis following the code for the primary obstetric condition or encounter.