2025 ICD-10 CM DIAGNOSIS INDEX TERMS STARTING WITH O

  • Chorioamnionitis, third trimester - O41.123
  • Chorioamnionitis, unspecified trimester - O41.129
  • Placentitis - O41.14
  • Placentitis, first trimester - O41.141
  • Placentitis, second trimester - O41.142
  • Placentitis, third trimester - O41.143
  • Placentitis, unspecified trimester - O41.149
  • Other specified disorders of amniotic fluid and membranes - O41.8
  • Other specified disorders of amniotic fluid and membranes - O41.8X
  • Other specified disorders of amniotic fluid and membranes, first trimester - O41.8X1
  • Other specified disorders of amniotic fluid and membranes, second trimester - O41.8X2
  • Other specified disorders of amniotic fluid and membranes, third trimester - O41.8X3
  • Other specified disorders of amniotic fluid and membranes, unspecified trimester - O41.8X9
  • Disorder of amniotic fluid and membranes, unspecified - O41.9
  • Disorder of amniotic fluid and membranes, unspecified, unspecified trimester - O41.90
  • Disorder of amniotic fluid and membranes, unspecified, first trimester - O41.91
  • Disorder of amniotic fluid and membranes, unspecified, second trimester - O41.92
  • Disorder of amniotic fluid and membranes, unspecified, third trimester - O41.93
  • Premature rupture of membranes, onset of labor within 24 hours of rupture - O42.0
  • Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation - O42.00
  • Preterm premature rupture of membranes, onset of labor within 24 hours of rupture - O42.01
  • Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, first trimester - O42.011
  • Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester - O42.012
  • Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester - O42.013
  • Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified trimester - O42.019
  • Full-term premature rupture of membranes, onset of labor within 24 hours of rupture - O42.02
  • Premature rupture of membranes, onset of labor more than 24 hours following rupture - O42.1
  • Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation - O42.10
  • Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture - O42.11
  • Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimester - O42.111
  • Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester - O42.112
  • Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, third trimester - O42.113
  • Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified trimester - O42.119
  • Full-term premature rupture of membranes, onset of labor more than 24 hours following rupture - O42.12
  • Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor - O42.9
  • Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation - O42.90
  • Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor - O42.91
  • Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester - O42.911
  • Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, second trimester - O42.912
  • Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, third trimester - O42.913
  • Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified trimester - O42.919
  • Full-term premature rupture of membranes, unspecified as to length of time between rupture and onset of labor - O42.92
  • Placental transfusion syndromes - O43.0
  • Fetomaternal placental transfusion syndrome - O43.01
  • Fetomaternal placental transfusion syndrome, first trimester - O43.011
  • Fetomaternal placental transfusion syndrome, second trimester - O43.012
  • Fetomaternal placental transfusion syndrome, third trimester - O43.013
  • Fetomaternal placental transfusion syndrome, unspecified trimester - O43.019
  • Fetus-to-fetus placental transfusion syndrome - O43.02
  • Fetus-to-fetus placental transfusion syndrome, first trimester - O43.021
  • Fetus-to-fetus placental transfusion syndrome, second trimester - O43.022
  • Fetus-to-fetus placental transfusion syndrome, third trimester - O43.023
  • Fetus-to-fetus placental transfusion syndrome, unspecified trimester - O43.029
  • Malformation of placenta - O43.1
  • Malformation of placenta, unspecified - O43.10
  • Malformation of placenta, unspecified, first trimester - O43.101
  • Malformation of placenta, unspecified, second trimester - O43.102
  • Malformation of placenta, unspecified, third trimester - O43.103
  • Malformation of placenta, unspecified, unspecified trimester - O43.109
  • Circumvallate placenta - O43.11
  • Circumvallate placenta, first trimester - O43.111
  • Circumvallate placenta, second trimester - O43.112
  • Circumvallate placenta, third trimester - O43.113
  • Circumvallate placenta, unspecified trimester - O43.119
  • Velamentous insertion of umbilical cord - O43.12
  • Velamentous insertion of umbilical cord, first trimester - O43.121
  • Velamentous insertion of umbilical cord, second trimester - O43.122
  • Velamentous insertion of umbilical cord, third trimester - O43.123
  • Velamentous insertion of umbilical cord, unspecified trimester - O43.129
  • Other malformation of placenta - O43.19
  • Other malformation of placenta, first trimester - O43.191
  • Other malformation of placenta, second trimester - O43.192
  • Other malformation of placenta, third trimester - O43.193
  • Other malformation of placenta, unspecified trimester - O43.199
  • Morbidly adherent placenta - O43.2
  • Placenta accreta - O43.21
  • Placenta accreta, first trimester - O43.211
  • Placenta accreta, second trimester - O43.212
  • Placenta accreta, third trimester - O43.213
  • Placenta accreta, unspecified trimester - O43.219
  • Placenta increta - O43.22
  • Placenta increta, first trimester - O43.221
  • Placenta increta, second trimester - O43.222
  • Placenta increta, third trimester - O43.223
  • Placenta increta, unspecified trimester - O43.229
  • Placenta percreta - O43.23
  • Placenta percreta, first trimester - O43.231
  • Placenta percreta, second trimester - O43.232
  • Placenta percreta, third trimester - O43.233
  • Placenta percreta, unspecified trimester - O43.239
  • Other placental disorders - O43.8
  • Placental infarction - O43.81
  • Placental infarction, first trimester - O43.811
  • Placental infarction, second trimester - O43.812
  • Placental infarction, third trimester - O43.813
  • Placental infarction, unspecified trimester - O43.819
  • Other placental disorders - O43.89
  • Other placental disorders, first trimester - O43.891
  • Other placental disorders, second trimester - O43.892
  • Other placental disorders, third trimester - O43.893