ICD-10-CM > O00-O9A > O30-O48 > O41 > O41.1 > O41.10 > O41.103 O41.103 Infection of amniotic sac and membranes, unspecified, third trimester Non-Billable/Non-Specific Codes O41.1030..., not applicable or unspecifiedO41.1031..., fetus 1O41.1032..., fetus 2O41.1033..., fetus 3O41.1034..., fetus 4O41.1035..., fetus 5O41.1039..., other fetus