O36.51 - Maternal care for known or suspected placental insufficiency O36.5 - Maternal care for known or suspected poor fetal growth O36.51 - Maternal care for known or suspected placental insufficiency O36.511 - Maternal care for known or suspected placental insufficiency, first trimester O36.512 - Maternal care for known or suspected placental insufficiency, second trimester O36.513 - Maternal care for known or suspected placental insufficiency, third trimester O36.519 - Maternal care for known or suspected placental insufficiency, unspecified trimester