ICD-10-CM > O00-O9A > O30-O48 > O36 > O36.6 > O36.60 O36.60 Maternal care for excessive fetal growth, unspecified trimester Non-Billable/Non-Specific Codes O36.60X0..., not applicable or unspecifiedO36.60X1..., fetus 1O36.60X2..., fetus 2O36.60X3..., fetus 3O36.60X4..., fetus 4O36.60X5..., fetus 5O36.60X9..., other fetus