--- O41.101 Infection of amniotic sac and membranes, unspecified, first trimester

--- O41.102 Infection of amniotic sac and membranes, unspecified, second trimester

--- O41.103 Infection of amniotic sac and membranes, unspecified, third trimester

--- O41.109 Infection of amniotic sac and membranes, unspecified, unspecified trimester