| O411099 | Infection of amniotic sac and membranes, unspecified, unspecified trimester, other fetus |
| O411210 | Chorioamnionitis, first trimester, not applicable or unspecified |
| O411211 | Chorioamnionitis, first trimester, fetus 1 |
| O411212 | Chorioamnionitis, first trimester, fetus 2 |
| O411213 | Chorioamnionitis, first trimester, fetus 3 |
| O411214 | Chorioamnionitis, first trimester, fetus 4 |
| O411215 | Chorioamnionitis, first trimester, fetus 5 |
| O411219 | Chorioamnionitis, first trimester, other fetus |
| O411220 | Chorioamnionitis, second trimester, not applicable or unspecified |
| O411221 | Chorioamnionitis, second trimester, fetus 1 |
| O411222 | Chorioamnionitis, second trimester, fetus 2 |
| O411223 | Chorioamnionitis, second trimester, fetus 3 |
| O411224 | Chorioamnionitis, second trimester, fetus 4 |
| O411225 | Chorioamnionitis, second trimester, fetus 5 |
| O411229 | Chorioamnionitis, second trimester, other fetus |
| O411230 | Chorioamnionitis, third trimester, not applicable or unspecified |
| O411231 | Chorioamnionitis, third trimester, fetus 1 |
| O411232 | Chorioamnionitis, third trimester, fetus 2 |
| O411233 | Chorioamnionitis, third trimester, fetus 3 |
| O411234 | Chorioamnionitis, third trimester, fetus 4 |
| O411235 | Chorioamnionitis, third trimester, fetus 5 |
| O411239 | Chorioamnionitis, third trimester, other fetus |
| O411290 | Chorioamnionitis, unspecified trimester, not applicable or unspecified |
| O411291 | Chorioamnionitis, unspecified trimester, fetus 1 |
| O411292 | Chorioamnionitis, unspecified trimester, fetus 2 |
| O411293 | Chorioamnionitis, unspecified trimester, fetus 3 |
| O411294 | Chorioamnionitis, unspecified trimester, fetus 4 |
| O411295 | Chorioamnionitis, unspecified trimester, fetus 5 |
| O411299 | Chorioamnionitis, unspecified trimester, other fetus |
| O411410 | Placentitis, first trimester, not applicable or unspecified |
| O411411 | Placentitis, first trimester, fetus 1 |
| O411412 | Placentitis, first trimester, fetus 2 |
| O411413 | Placentitis, first trimester, fetus 3 |
| O411414 | Placentitis, first trimester, fetus 4 |
| O411415 | Placentitis, first trimester, fetus 5 |
| O411419 | Placentitis, first trimester, other fetus |
| O411420 | Placentitis, second trimester, not applicable or unspecified |
| O411421 | Placentitis, second trimester, fetus 1 |
| O411422 | Placentitis, second trimester, fetus 2 |
| O411423 | Placentitis, second trimester, fetus 3 |
| O411424 | Placentitis, second trimester, fetus 4 |
| O411425 | Placentitis, second trimester, fetus 5 |
| O411429 | Placentitis, second trimester, other fetus |
| O411430 | Placentitis, third trimester, not applicable or unspecified |
| O411431 | Placentitis, third trimester, fetus 1 |
| O411432 | Placentitis, third trimester, fetus 2 |
| O411433 | Placentitis, third trimester, fetus 3 |
| O411434 | Placentitis, third trimester, fetus 4 |
| O411435 | Placentitis, third trimester, fetus 5 |
| O411439 | Placentitis, third trimester, other fetus |
| O411490 | Placentitis, unspecified trimester, not applicable or unspecified |
| O411491 | Placentitis, unspecified trimester, fetus 1 |
| O411492 | Placentitis, unspecified trimester, fetus 2 |
| O411493 | Placentitis, unspecified trimester, fetus 3 |
| O411494 | Placentitis, unspecified trimester, fetus 4 |
| O411495 | Placentitis, unspecified trimester, fetus 5 |
| O411499 | Placentitis, unspecified trimester, other fetus |
| O418X10 | Other specified disorders of amniotic fluid and membranes, first trimester, not applicable or unspecified |
| O418X11 | Other specified disorders of amniotic fluid and membranes, first trimester, fetus 1 |
| O418X12 | Other specified disorders of amniotic fluid and membranes, first trimester, fetus 2 |
| O418X13 | Other specified disorders of amniotic fluid and membranes, first trimester, fetus 3 |
| O418X14 | Other specified disorders of amniotic fluid and membranes, first trimester, fetus 4 |
| O418X15 | Other specified disorders of amniotic fluid and membranes, first trimester, fetus 5 |
| O418X19 | Other specified disorders of amniotic fluid and membranes, first trimester, other fetus |
| O418X20 | Other specified disorders of amniotic fluid and membranes, second trimester, not applicable or unspecified |
| O418X21 | Other specified disorders of amniotic fluid and membranes, second trimester, fetus 1 |
| O418X22 | Other specified disorders of amniotic fluid and membranes, second trimester, fetus 2 |
| O418X23 | Other specified disorders of amniotic fluid and membranes, second trimester, fetus 3 |
| O418X24 | Other specified disorders of amniotic fluid and membranes, second trimester, fetus 4 |
| O418X25 | Other specified disorders of amniotic fluid and membranes, second trimester, fetus 5 |
| O418X29 | Other specified disorders of amniotic fluid and membranes, second trimester, other fetus |
| O418X30 | Other specified disorders of amniotic fluid and membranes, third trimester, not applicable or unspecified |
| O418X31 | Other specified disorders of amniotic fluid and membranes, third trimester, fetus 1 |
| O418X32 | Other specified disorders of amniotic fluid and membranes, third trimester, fetus 2 |
| O418X33 | Other specified disorders of amniotic fluid and membranes, third trimester, fetus 3 |
| O418X34 | Other specified disorders of amniotic fluid and membranes, third trimester, fetus 4 |
| O418X35 | Other specified disorders of amniotic fluid and membranes, third trimester, fetus 5 |
| O418X39 | Other specified disorders of amniotic fluid and membranes, third trimester, other fetus |
| O418X90 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, not applicable or unspecified |
| O418X91 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 1 |
| O418X92 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 2 |
| O418X93 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 3 |
| O418X94 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 4 |
| O418X95 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 5 |
| O418X99 | Other specified disorders of amniotic fluid and membranes, unspecified trimester, other fetus |
| O4190X0 | Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, not applicable or unspecified |
| O4190X1 | Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, fetus 1 |
| O4190X2 | Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, fetus 2 |
| O4190X3 | Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, fetus 3 |
| O4190X4 | Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, fetus 4 |
| O4190X5 | Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, fetus 5 |
| O4190X9 | Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, other fetus |
| O4191X0 | Disorder of amniotic fluid and membranes, unspecified, first trimester, not applicable or unspecified |
| O4191X1 | Disorder of amniotic fluid and membranes, unspecified, first trimester, fetus 1 |
| O4191X2 | Disorder of amniotic fluid and membranes, unspecified, first trimester, fetus 2 |
| O4191X3 | Disorder of amniotic fluid and membranes, unspecified, first trimester, fetus 3 |
| O4191X4 | Disorder of amniotic fluid and membranes, unspecified, first trimester, fetus 4 |
| O4191X5 | Disorder of amniotic fluid and membranes, unspecified, first trimester, fetus 5 |
| O4191X9 | Disorder of amniotic fluid and membranes, unspecified, first trimester, other fetus |
| O4192X0 | Disorder of amniotic fluid and membranes, unspecified, second trimester, not applicable or unspecified |
| O4192X1 | Disorder of amniotic fluid and membranes, unspecified, second trimester, fetus 1 |
| O4192X2 | Disorder of amniotic fluid and membranes, unspecified, second trimester, fetus 2 |
| O4192X3 | Disorder of amniotic fluid and membranes, unspecified, second trimester, fetus 3 |
| O4192X4 | Disorder of amniotic fluid and membranes, unspecified, second trimester, fetus 4 |
| O4192X5 | Disorder of amniotic fluid and membranes, unspecified, second trimester, fetus 5 |
| O4192X9 | Disorder of amniotic fluid and membranes, unspecified, second trimester, other fetus |
| O4193X0 | Disorder of amniotic fluid and membranes, unspecified, third trimester, not applicable or unspecified |
| O4193X1 | Disorder of amniotic fluid and membranes, unspecified, third trimester, fetus 1 |
| O4193X2 | Disorder of amniotic fluid and membranes, unspecified, third trimester, fetus 2 |
| O4193X3 | Disorder of amniotic fluid and membranes, unspecified, third trimester, fetus 3 |
| O4193X4 | Disorder of amniotic fluid and membranes, unspecified, third trimester, fetus 4 |
| O4193X5 | Disorder of amniotic fluid and membranes, unspecified, third trimester, fetus 5 |
| O4193X9 | Disorder of amniotic fluid and membranes, unspecified, third trimester, other fetus |
| O4200 | Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation |
| O42011 | Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, first trimester |
| O42012 | Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester |
| O42013 | Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester |
| O42019 | Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified trimester |
| O4202 | Full-term premature rupture of membranes, onset of labor within 24 hours of rupture |
| O4210 | Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation |
| O42111 | Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimester |
| O42112 | Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester |
| O42113 | Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, third trimester |
| O42119 | Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified trimester |
| O4212 | Full-term premature rupture of membranes, onset of labor more than 24 hours following rupture |
| O4290 | Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation |
| O42911 | Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester |
| O42912 | Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, second trimester |
| O42913 | Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, third trimester |
| O42919 | Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified trimester |
| O4292 | Full-term premature rupture of membranes, unspecified as to length of time between rupture and onset of labor |
| O43011 | Fetomaternal placental transfusion syndrome, first trimester |
| O43012 | Fetomaternal placental transfusion syndrome, second trimester |
| O43013 | Fetomaternal placental transfusion syndrome, third trimester |
| O43019 | Fetomaternal placental transfusion syndrome, unspecified trimester |
| O43021 | Fetus-to-fetus placental transfusion syndrome, first trimester |
| O43022 | Fetus-to-fetus placental transfusion syndrome, second trimester |
| O43023 | Fetus-to-fetus placental transfusion syndrome, third trimester |
| O43029 | Fetus-to-fetus placental transfusion syndrome, unspecified trimester |
| O43101 | Malformation of placenta, unspecified, first trimester |
| O43102 | Malformation of placenta, unspecified, second trimester |
| O43103 | Malformation of placenta, unspecified, third trimester |
| O43109 | Malformation of placenta, unspecified, unspecified trimester |
| O43111 | Circumvallate placenta, first trimester |
| O43112 | Circumvallate placenta, second trimester |
| O43113 | Circumvallate placenta, third trimester |
| O43119 | Circumvallate placenta, unspecified trimester |
| O43121 | Velamentous insertion of umbilical cord, first trimester |
| O43122 | Velamentous insertion of umbilical cord, second trimester |
| O43123 | Velamentous insertion of umbilical cord, third trimester |
| O43129 | Velamentous insertion of umbilical cord, unspecified trimester |
| O43191 | Other malformation of placenta, first trimester |
| O43192 | Other malformation of placenta, second trimester |
| O43193 | Other malformation of placenta, third trimester |
| O43199 | Other malformation of placenta, unspecified trimester |
| O43211 | Placenta accreta, first trimester |
| O43212 | Placenta accreta, second trimester |
| O43213 | Placenta accreta, third trimester |
| O43219 | Placenta accreta, unspecified trimester |
| O43221 | Placenta increta, first trimester |
| O43222 | Placenta increta, second trimester |
| O43223 | Placenta increta, third trimester |
| O43229 | Placenta increta, unspecified trimester |
| O43231 | Placenta percreta, first trimester |
| O43232 | Placenta percreta, second trimester |
| O43233 | Placenta percreta, third trimester |
| O43239 | Placenta percreta, unspecified trimester |
| O43811 | Placental infarction, first trimester |
| O43812 | Placental infarction, second trimester |
| O43813 | Placental infarction, third trimester |
| O43819 | Placental infarction, unspecified trimester |
| O43891 | Other placental disorders, first trimester |
| O43892 | Other placental disorders, second trimester |
| O43893 | Other placental disorders, third trimester |
| O43899 | Other placental disorders, unspecified trimester |
| O4390 | Unspecified placental disorder, unspecified trimester |
| O4391 | Unspecified placental disorder, first trimester |
| O4392 | Unspecified placental disorder, second trimester |
| O4393 | Unspecified placental disorder, third trimester |
| O4400 | Complete placenta previa NOS or without hemorrhage, unspecified trimester |
| O4401 | Complete placenta previa NOS or without hemorrhage, first trimester |
| O4402 | Complete placenta previa NOS or without hemorrhage, second trimester |
| O4403 | Complete placenta previa NOS or without hemorrhage, third trimester |
| O4410 | Complete placenta previa with hemorrhage, unspecified trimester |
| O4411 | Complete placenta previa with hemorrhage, first trimester |
| O4412 | Complete placenta previa with hemorrhage, second trimester |
| O4413 | Complete placenta previa with hemorrhage, third trimester |
| O4420 | Partial placenta previa NOS or without hemorrhage, unspecified trimester |
| O4421 | Partial placenta previa NOS or without hemorrhage, first trimester |
| O4422 | Partial placenta previa NOS or without hemorrhage, second trimester |
| O4423 | Partial placenta previa NOS or without hemorrhage, third trimester |
| O4430 | Partial placenta previa with hemorrhage, unspecified trimester |
| O4431 | Partial placenta previa with hemorrhage, first trimester |
| O4432 | Partial placenta previa with hemorrhage, second trimester |
| O4433 | Partial placenta previa with hemorrhage, third trimester |
| O4440 | Low lying placenta NOS or without hemorrhage, unspecified trimester |
| O4441 | Low lying placenta NOS or without hemorrhage, first trimester |
| O4442 | Low lying placenta NOS or without hemorrhage, second trimester |
| O4443 | Low lying placenta NOS or without hemorrhage, third trimester |
| O4450 | Low lying placenta with hemorrhage, unspecified trimester |
| O4451 | Low lying placenta with hemorrhage, first trimester |
| O4452 | Low lying placenta with hemorrhage, second trimester |
| O4453 | Low lying placenta with hemorrhage, third trimester |
| O45001 | Premature separation of placenta with coagulation defect, unspecified, first trimester |
| O45002 | Premature separation of placenta with coagulation defect, unspecified, second trimester |
| O45003 | Premature separation of placenta with coagulation defect, unspecified, third trimester |
| O45009 | Premature separation of placenta with coagulation defect, unspecified, unspecified trimester |
| O45011 | Premature separation of placenta with afibrinogenemia, first trimester |
| O45012 | Premature separation of placenta with afibrinogenemia, second trimester |
| O45013 | Premature separation of placenta with afibrinogenemia, third trimester |
| O45019 | Premature separation of placenta with afibrinogenemia, unspecified trimester |
| O45021 | Premature separation of placenta with disseminated intravascular coagulation, first trimester |
| O45022 | Premature separation of placenta with disseminated intravascular coagulation, second trimester |
| O45023 | Premature separation of placenta with disseminated intravascular coagulation, third trimester |
| O45029 | Premature separation of placenta with disseminated intravascular coagulation, unspecified trimester |
| O45091 | Premature separation of placenta with other coagulation defect, first trimester |
| O45092 | Premature separation of placenta with other coagulation defect, second trimester |
| O45093 | Premature separation of placenta with other coagulation defect, third trimester |
| O45099 | Premature separation of placenta with other coagulation defect, unspecified trimester |
| O458X1 | Other premature separation of placenta, first trimester |
| O458X2 | Other premature separation of placenta, second trimester |
| O458X3 | Other premature separation of placenta, third trimester |
| O458X9 | Other premature separation of placenta, unspecified trimester |
| O4590 | Premature separation of placenta, unspecified, unspecified trimester |
| O4591 | Premature separation of placenta, unspecified, first trimester |
| O4592 | Premature separation of placenta, unspecified, second trimester |
| O4593 | Premature separation of placenta, unspecified, third trimester |
| O46001 | Antepartum hemorrhage with coagulation defect, unspecified, first trimester |
| O46002 | Antepartum hemorrhage with coagulation defect, unspecified, second trimester |
| O46003 | Antepartum hemorrhage with coagulation defect, unspecified, third trimester |
| O46009 | Antepartum hemorrhage with coagulation defect, unspecified, unspecified trimester |
| O46011 | Antepartum hemorrhage with afibrinogenemia, first trimester |
| O46012 | Antepartum hemorrhage with afibrinogenemia, second trimester |
| O46013 | Antepartum hemorrhage with afibrinogenemia, third trimester |
| O46019 | Antepartum hemorrhage with afibrinogenemia, unspecified trimester |
| O46021 | Antepartum hemorrhage with disseminated intravascular coagulation, first trimester |
| O46022 | Antepartum hemorrhage with disseminated intravascular coagulation, second trimester |
| O46023 | Antepartum hemorrhage with disseminated intravascular coagulation, third trimester |
| O46029 | Antepartum hemorrhage with disseminated intravascular coagulation, unspecified trimester |
| O46091 | Antepartum hemorrhage with other coagulation defect, first trimester |
| O46092 | Antepartum hemorrhage with other coagulation defect, second trimester |
| O46093 | Antepartum hemorrhage with other coagulation defect, third trimester |
| O46099 | Antepartum hemorrhage with other coagulation defect, unspecified trimester |
| O468X1 | Other antepartum hemorrhage, first trimester |
| O468X2 | Other antepartum hemorrhage, second trimester |
| O468X3 | Other antepartum hemorrhage, third trimester |
| O468X9 | Other antepartum hemorrhage, unspecified trimester |
| O4690 | Antepartum hemorrhage, unspecified, unspecified trimester |
| O4691 | Antepartum hemorrhage, unspecified, first trimester |
| O4692 | Antepartum hemorrhage, unspecified, second trimester |
| O4693 | Antepartum hemorrhage, unspecified, third trimester |
| O4700 | False labor before 37 completed weeks of gestation, unspecified trimester |
| O4702 | False labor before 37 completed weeks of gestation, second trimester |
| O4703 | False labor before 37 completed weeks of gestation, third trimester |
| O471 | False labor at or after 37 completed weeks of gestation |
| O479 | False labor, unspecified |
| O480 | Post-term pregnancy |
| O481 | Prolonged pregnancy |
| O6000 | Preterm labor without delivery, unspecified trimester |
| O6002 | Preterm labor without delivery, second trimester |
| O6003 | Preterm labor without delivery, third trimester |
| O6010X0 | Preterm labor with preterm delivery, unspecified trimester, not applicable or unspecified |
| O6010X1 | Preterm labor with preterm delivery, unspecified trimester, fetus 1 |
| O6010X2 | Preterm labor with preterm delivery, unspecified trimester, fetus 2 |
| O6010X3 | Preterm labor with preterm delivery, unspecified trimester, fetus 3 |
| O6010X4 | Preterm labor with preterm delivery, unspecified trimester, fetus 4 |
| O6010X5 | Preterm labor with preterm delivery, unspecified trimester, fetus 5 |
| O6010X9 | Preterm labor with preterm delivery, unspecified trimester, other fetus |
| O6012X0 | Preterm labor second trimester with preterm delivery second trimester, not applicable or unspecified |
| O6012X1 | Preterm labor second trimester with preterm delivery second trimester, fetus 1 |
| O6012X2 | Preterm labor second trimester with preterm delivery second trimester, fetus 2 |
| O6012X3 | Preterm labor second trimester with preterm delivery second trimester, fetus 3 |
| O6012X4 | Preterm labor second trimester with preterm delivery second trimester, fetus 4 |
| O6012X5 | Preterm labor second trimester with preterm delivery second trimester, fetus 5 |
| O6012X9 | Preterm labor second trimester with preterm delivery second trimester, other fetus |
| O6013X0 | Preterm labor second trimester with preterm delivery third trimester, not applicable or unspecified |
| O6013X1 | Preterm labor second trimester with preterm delivery third trimester, fetus 1 |
| O6013X2 | Preterm labor second trimester with preterm delivery third trimester, fetus 2 |
| O6013X3 | Preterm labor second trimester with preterm delivery third trimester, fetus 3 |
| O6013X4 | Preterm labor second trimester with preterm delivery third trimester, fetus 4 |
| O6013X5 | Preterm labor second trimester with preterm delivery third trimester, fetus 5 |
| O6013X9 | Preterm labor second trimester with preterm delivery third trimester, other fetus |
| O6014X0 | Preterm labor third trimester with preterm delivery third trimester, not applicable or unspecified |
| O6014X1 | Preterm labor third trimester with preterm delivery third trimester, fetus 1 |
| O6014X2 | Preterm labor third trimester with preterm delivery third trimester, fetus 2 |
| O6014X3 | Preterm labor third trimester with preterm delivery third trimester, fetus 3 |
| O6014X4 | Preterm labor third trimester with preterm delivery third trimester, fetus 4 |
| O6014X5 | Preterm labor third trimester with preterm delivery third trimester, fetus 5 |
| O6014X9 | Preterm labor third trimester with preterm delivery third trimester, other fetus |
| O6020X0 | Term delivery with preterm labor, unspecified trimester, not applicable or unspecified |
| O6020X1 | Term delivery with preterm labor, unspecified trimester, fetus 1 |
| O6020X2 | Term delivery with preterm labor, unspecified trimester, fetus 2 |
| O6020X3 | Term delivery with preterm labor, unspecified trimester, fetus 3 |
| O6020X4 | Term delivery with preterm labor, unspecified trimester, fetus 4 |
| O6020X5 | Term delivery with preterm labor, unspecified trimester, fetus 5 |
| O6020X9 | Term delivery with preterm labor, unspecified trimester, other fetus |
| O6022X0 | Term delivery with preterm labor, second trimester, not applicable or unspecified |
| O6022X1 | Term delivery with preterm labor, second trimester, fetus 1 |
| O6022X2 | Term delivery with preterm labor, second trimester, fetus 2 |
| O6022X3 | Term delivery with preterm labor, second trimester, fetus 3 |
| O6022X4 | Term delivery with preterm labor, second trimester, fetus 4 |
| O6022X5 | Term delivery with preterm labor, second trimester, fetus 5 |
| O6022X9 | Term delivery with preterm labor, second trimester, other fetus |
| O6023X0 | Term delivery with preterm labor, third trimester, not applicable or unspecified |
| O6023X1 | Term delivery with preterm labor, third trimester, fetus 1 |
| O6023X2 | Term delivery with preterm labor, third trimester, fetus 2 |
| O6023X3 | Term delivery with preterm labor, third trimester, fetus 3 |
| O6023X4 | Term delivery with preterm labor, third trimester, fetus 4 |
| O6023X5 | Term delivery with preterm labor, third trimester, fetus 5 |
| O6023X9 | Term delivery with preterm labor, third trimester, other fetus |
| O610 | Failed medical induction of labor |
| O611 | Failed instrumental induction of labor |
| O618 | Other failed induction of labor |
| O619 | Failed induction of labor, unspecified |
| O620 | Primary inadequate contractions |
| O621 | Secondary uterine inertia |
| O622 | Other uterine inertia |
| O623 | Precipitate labor |
| O624 | Hypertonic, incoordinate, and prolonged uterine contractions |
| O628 | Other abnormalities of forces of labor |
| O629 | Abnormality of forces of labor, unspecified |
| O630 | Prolonged first stage (of labor) |
| O631 | Prolonged second stage (of labor) |
| O632 | Delayed delivery of second twin, triplet, etc. |
| O639 | Long labor, unspecified |
| O640XX0 | Obstructed labor due to incomplete rotation of fetal head, not applicable or unspecified |
| O640XX1 | Obstructed labor due to incomplete rotation of fetal head, fetus 1 |
| O640XX2 | Obstructed labor due to incomplete rotation of fetal head, fetus 2 |
| O640XX3 | Obstructed labor due to incomplete rotation of fetal head, fetus 3 |
| O640XX4 | Obstructed labor due to incomplete rotation of fetal head, fetus 4 |
| O640XX5 | Obstructed labor due to incomplete rotation of fetal head, fetus 5 |
| O640XX9 | Obstructed labor due to incomplete rotation of fetal head, other fetus |
| O641XX0 | Obstructed labor due to breech presentation, not applicable or unspecified |
| O641XX1 | Obstructed labor due to breech presentation, fetus 1 |
| O641XX2 | Obstructed labor due to breech presentation, fetus 2 |
| O641XX3 | Obstructed labor due to breech presentation, fetus 3 |
| O641XX4 | Obstructed labor due to breech presentation, fetus 4 |
| O641XX5 | Obstructed labor due to breech presentation, fetus 5 |
| O641XX9 | Obstructed labor due to breech presentation, other fetus |
| O642XX0 | Obstructed labor due to face presentation, not applicable or unspecified |
| O642XX1 | Obstructed labor due to face presentation, fetus 1 |
| O642XX2 | Obstructed labor due to face presentation, fetus 2 |
| O642XX3 | Obstructed labor due to face presentation, fetus 3 |
| O642XX4 | Obstructed labor due to face presentation, fetus 4 |
| O642XX5 | Obstructed labor due to face presentation, fetus 5 |
| O642XX9 | Obstructed labor due to face presentation, other fetus |
| O643XX0 | Obstructed labor due to brow presentation, not applicable or unspecified |
| O643XX1 | Obstructed labor due to brow presentation, fetus 1 |
| O643XX2 | Obstructed labor due to brow presentation, fetus 2 |
| O643XX3 | Obstructed labor due to brow presentation, fetus 3 |
| O643XX4 | Obstructed labor due to brow presentation, fetus 4 |
| O643XX5 | Obstructed labor due to brow presentation, fetus 5 |
| O643XX9 | Obstructed labor due to brow presentation, other fetus |
| O644XX0 | Obstructed labor due to shoulder presentation, not applicable or unspecified |
| O644XX1 | Obstructed labor due to shoulder presentation, fetus 1 |
| O644XX2 | Obstructed labor due to shoulder presentation, fetus 2 |
| O644XX3 | Obstructed labor due to shoulder presentation, fetus 3 |
| O644XX4 | Obstructed labor due to shoulder presentation, fetus 4 |
| O644XX5 | Obstructed labor due to shoulder presentation, fetus 5 |
| O644XX9 | Obstructed labor due to shoulder presentation, other fetus |
| O645XX0 | Obstructed labor due to compound presentation, not applicable or unspecified |
| O645XX1 | Obstructed labor due to compound presentation, fetus 1 |
| O645XX2 | Obstructed labor due to compound presentation, fetus 2 |
| O645XX3 | Obstructed labor due to compound presentation, fetus 3 |
| O645XX4 | Obstructed labor due to compound presentation, fetus 4 |
| O645XX5 | Obstructed labor due to compound presentation, fetus 5 |
| O645XX9 | Obstructed labor due to compound presentation, other fetus |
| O648XX0 | Obstructed labor due to other malposition and malpresentation, not applicable or unspecified |
| O648XX1 | Obstructed labor due to other malposition and malpresentation, fetus 1 |
| O648XX2 | Obstructed labor due to other malposition and malpresentation, fetus 2 |
| O648XX3 | Obstructed labor due to other malposition and malpresentation, fetus 3 |
| O648XX4 | Obstructed labor due to other malposition and malpresentation, fetus 4 |
| O648XX5 | Obstructed labor due to other malposition and malpresentation, fetus 5 |
| O648XX9 | Obstructed labor due to other malposition and malpresentation, other fetus |
| O649XX0 | Obstructed labor due to malposition and malpresentation, unspecified, not applicable or unspecified |
| O649XX1 | Obstructed labor due to malposition and malpresentation, unspecified, fetus 1 |
| O649XX2 | Obstructed labor due to malposition and malpresentation, unspecified, fetus 2 |
| O649XX3 | Obstructed labor due to malposition and malpresentation, unspecified, fetus 3 |
| O649XX4 | Obstructed labor due to malposition and malpresentation, unspecified, fetus 4 |
| O649XX5 | Obstructed labor due to malposition and malpresentation, unspecified, fetus 5 |
| O649XX9 | Obstructed labor due to malposition and malpresentation, unspecified, other fetus |
| O650 | Obstructed labor due to deformed pelvis |
| O651 | Obstructed labor due to generally contracted pelvis |
| O652 | Obstructed labor due to pelvic inlet contraction |
| O653 | Obstructed labor due to pelvic outlet and mid-cavity contraction |
| O654 | Obstructed labor due to fetopelvic disproportion, unspecified |
| O655 | Obstructed labor due to abnormality of maternal pelvic organs |
| O658 | Obstructed labor due to other maternal pelvic abnormalities |
| O659 | Obstructed labor due to maternal pelvic abnormality, unspecified |
| O660 | Obstructed labor due to shoulder dystocia |
| O661 | Obstructed labor due to locked twins |
| O662 | Obstructed labor due to unusually large fetus |
| O663 | Obstructed labor due to other abnormalities of fetus |
| O6640 | Failed trial of labor, unspecified |
| O6641 | Failed attempted vaginal birth after previous cesarean delivery |
| O665 | Attempted application of vacuum extractor and forceps |
| O666 | Obstructed labor due to other multiple fetuses |
| O668 | Other specified obstructed labor |
| O669 | Obstructed labor, unspecified |
| O670 | Intrapartum hemorrhage with coagulation defect |
| O678 | Other intrapartum hemorrhage |
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