ICD-10-CM > O00-O9A > O30-O48 > O35 > O35.1 > O35.19 O35.19 Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality Non-Billable/Non-Specific Codes O35.19X0..., not applicable or unspecifiedO35.19X1..., fetus 1O35.19X2..., fetus 2O35.19X3..., fetus 3O35.19X4..., fetus 4O35.19X5..., fetus 5O35.19X9..., other fetus