Matern care for known or susp placntl insuff, unsp tri, fts1

This code describes a pregnant patient receiving medical care due to a known or suspected condition where the placenta is not adequately supplying nutrients and oxygen to the fetus. This placental dysfunction can lead to fetal growth restriction or other adverse perinatal outcomes. The specific trimester of pregnancy is not documented or is unknown, and this code applies to a singleton pregnancy.

Use this code when documentation indicates maternal care for placental insufficiency, but the specific trimester is not specified or is unknown. This may include scenarios where the diagnosis is suspected based on fetal growth concerns, abnormal Doppler studies, or prior obstetric history, and the pregnancy is not yet clearly in the first, second, or third trimester. Supporting documentation should clearly state "placental insufficiency" or "uteroplacental insufficiency" and indicate maternal care for this condition.

• Ensure documentation explicitly states "unspecified trimester" or lacks specific trimester information.
• Do not use this code if the trimester is known; instead, select the appropriate O36.51x_ code specifying the trimester.
• This code is for a singleton pregnancy (fetus 1); for multiple gestations, refer to codes O36.52x_ or O36.53x_.