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multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O41 that has a 7th character of 1 through 9.
- 0 not applicable or unspecified
- 1 fetus 1
- 2 fetus 2
- 3 fetus 3
- 4 fetus 4
- 5 fetus 5
- 9 other fetus
- O41.0 Oligohydramnios
- Oligohydramnios without rupture of membranes
- O41.00 Oligohydramnios, unspecified trimester
- O41.01 Oligohydramnios, first trimester
- O41.02 Oligohydramnios, second trimester
- O41.03 Oligohydramnios, third trimester
- O41.1 Infection of amniotic sac and membranes
- O41.10 Infection of amniotic sac and membranes, unspecified
- 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
- O41.12 Chorioamnionitis
- O41.121 Chorioamnionitis, first trimester
- O41.122 Chorioamnionitis, second trimester
- O41.123 Chorioamnionitis, third trimester
- O41.129 Chorioamnionitis, unspecified trimester
- O41.14 Placentitis
- O41.141 Placentitis, first trimester
- O41.142 Placentitis, second trimester
- O41.143 Placentitis, third trimester
- O41.149 Placentitis, unspecified trimester
- O41.10 Infection of amniotic sac and membranes, unspecified
- O41.8 Other specified disorders of amniotic fluid and membranes
- O41.8x Other specified disorders of amniotic fluid and membranes
- O41.8x1 Other specified disorders of amniotic fluid and membranes, first trimester
- O41.8x2 Other specified disorders of amniotic fluid and membranes, second trimester
- O41.8x Other specified disorders of amniotic fluid and membranes