ICD-10-CM > O00-O9A > O30-O48 > O36 > O36.5 > O36.51 > O36.513 O36.513 Maternal care for known or suspected placental insufficiency, third trimester Non-Billable/Non-Specific Codes O36.5130..., not applicable or unspecifiedO36.5131..., fetus 1O36.5132..., fetus 2O36.5133..., fetus 3O36.5134..., fetus 4O36.5135..., fetus 5O36.5139..., other fetus