ICD-10-CM > O00-O9A > O30-O48 > O41 > O41.9 > O41.92 O41.92 Disorder of amniotic fluid and membranes, unspecified, second trimester Non-Billable/Non-Specific Codes O41.92X0..., not applicable or unspecifiedO41.92X1..., fetus 1O41.92X2..., fetus 2O41.92X3..., fetus 3O41.92X4..., fetus 4O41.92X5..., fetus 5O41.92X9..., other fetus