ICD-10-CM > O00-O9A > O30-O48 > O35 > O35.0 > O35.09 O35.09 Maternal care for (suspected) other central nervous system malformation or damage in fetus Non-Billable/Non-Specific Codes O35.09X0..., not applicable or unspecifiedO35.09X1..., fetus 1O35.09X2..., fetus 2O35.09X3..., fetus 3O35.09X4..., fetus 4O35.09X5..., fetus 5O35.09X9..., other fetus