| Header | Description |
| O00* | Ectopic pregnancy |
| O00.0* | Abdominal pregnancy |
| O00.1* | Tubal pregnancy |
| O00.10* | Tubal pregnancy without intrauterine pregnancy |
| O00.11* | Tubal pregnancy with intrauterine pregnancy |
| O00.2* | Ovarian pregnancy |
| O00.20* | Ovarian pregnancy without intrauterine pregnancy |
| O00.21* | Ovarian pregnancy with intrauterine pregnancy |
| O00.8* | Other ectopic pregnancy |
| O00.9* | Ectopic pregnancy, unspecified |
| O01* | Hydatidiform mole |
| O02* | Other abnormal products of conception |
| O02.8* | Other specified abnormal products of conception |
| O03* | Spontaneous abortion |
| O03.3* | Other and unspecified complications following incomplete spontaneous abortion |
| O03.8* | Other and unspecified complications following complete or unspecified spontaneous abortion |
| O04* | Complications following (induced) termination of pregnancy |
| O04.8* | (Induced) termination of pregnancy with other and unspecified complications |
| O07* | Failed attempted termination of pregnancy |
| O07.3* | Failed attempted termination of pregnancy with other and unspecified complications |
| O08* | Complications following ectopic and molar pregnancy |
| O08.8* | Other complications following an ectopic and molar pregnancy |
| O09* | Supervision of high risk pregnancy |
| O09.0* | Supervision of pregnancy with history of infertility |
| O09.1* | Supervision of pregnancy with history of ectopic pregnancy |
| O09.A* | Supervision of pregnancy with history of molar pregnancy |
| O09.2* | Supervision of pregnancy with other poor reproductive or obstetric history |
| O09.21* | Supervision of pregnancy with history of pre-term labor |
| O09.29* | Supervision of pregnancy with other poor reproductive or obstetric history |
| O09.3* | Supervision of pregnancy with insufficient antenatal care |
| O09.4* | Supervision of pregnancy with grand multiparity |
| O09.5* | Supervision of elderly primigravida and multigravida |
| O09.51* | Supervision of elderly primigravida |
| O09.52* | Supervision of elderly multigravida |
| O09.6* | Supervision of young primigravida and multigravida |
| O09.61* | Supervision of young primigravida |
| O09.62* | Supervision of young multigravida |
| O09.7* | Supervision of high risk pregnancy due to social problems |
| O09.8* | Supervision of other high risk pregnancies |
| O09.81* | Supervision of pregnancy resulting from assisted reproductive technology |
| O09.82* | Supervision of pregnancy with history of in utero procedure during previous pregnancy |
| O09.89* | Supervision of other high risk pregnancies |
| O09.9* | Supervision of high risk pregnancy, unspecified |
| O10* | Pre-existing hypertension complicating pregnancy, childbirth and the puerperium |
| O10.0* | Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium |
| O10.01* | Pre-existing essential hypertension complicating pregnancy, |
| O10.1* | Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperium |
| O10.11* | Pre-existing hypertensive heart disease complicating pregnancy |
| O10.2* | Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperium |
| O10.21* | Pre-existing hypertensive chronic kidney disease complicating pregnancy |
| O10.3* | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, childbirth and the puerperium |
| O10.31* | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy |
| O10.4* | Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium |
| O10.41* | Pre-existing secondary hypertension complicating pregnancy |
| O10.9* | Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium |
| O10.91* | Unspecified pre-existing hypertension complicating pregnancy |
| O11* | Pre-existing hypertension with pre-eclampsia |
| O12* | Gestational [pregnancy-induced] edema and proteinuria without hypertension |
| O12.0* | Gestational edema |
| O12.1* | Gestational proteinuria |
| O12.2* | Gestational edema with proteinuria |
| O13* | Gestational [pregnancy-induced] hypertension without significant proteinuria |
| O14* | Pre-eclampsia |
| O14.0* | Mild to moderate pre-eclampsia |
| O14.1* | Severe pre-eclampsia |
| O14.2* | HELLP syndrome |
| O14.9* | Unspecified pre-eclampsia |
| O15* | Eclampsia |
| O15.0* | Eclampsia complicating pregnancy |
| O16* | Unspecified maternal hypertension |
| O20* | Hemorrhage in early pregnancy |
| O21* | Excessive vomiting in pregnancy |
| O22* | Venous complications and hemorrhoids in pregnancy |
| O22.0* | Varicose veins of lower extremity in pregnancy |
| O22.1* | Genital varices in pregnancy |
| O22.2* | Superficial thrombophlebitis in pregnancy |
| O22.3* | Deep phlebothrombosis in pregnancy |
| O22.4* | Hemorrhoids in pregnancy |
| O22.5* | Cerebral venous thrombosis in pregnancy |
| O22.8* | Other venous complications in pregnancy |
| O22.8X* | Other venous complications in pregnancy |
| O22.9* | Venous complication in pregnancy, unspecified |
| O23* | Infections of genitourinary tract in pregnancy |
| O23.0* | Infections of kidney in pregnancy |
| O23.1* | Infections of bladder in pregnancy |
| O23.2* | Infections of urethra in pregnancy |
| O23.3* | Infections of other parts of urinary tract in pregnancy |
| O23.4* | Unspecified infection of urinary tract in pregnancy |
| O23.5* | Infections of the genital tract in pregnancy |
| O23.51* | Infection of cervix in pregnancy |
| O23.52* | Salpingo-oophoritis in pregnancy |
| O23.59* | Infection of other part of genital tract in pregnancy |
| O23.9* | Unspecified genitourinary tract infection in pregnancy |
| O24* | Diabetes mellitus in pregnancy, childbirth, and the puerperium |
| O24.0* | Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium |
| O24.01* | Pre-existing type 1 diabetes mellitus, in pregnancy |
| O24.1* | Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium |
| O24.11* | Pre-existing type 2 diabetes mellitus, in pregnancy |
| O24.3* | Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium |
| O24.31* | Unspecified pre-existing diabetes mellitus in pregnancy |
| O24.4* | Gestational diabetes mellitus |
| O24.41* | Gestational diabetes mellitus in pregnancy |
| O24.42* | Gestational diabetes mellitus in childbirth |
| O24.43* | Gestational diabetes mellitus in the puerperium |
| O24.8* | Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium |
| O24.81* | Other pre-existing diabetes mellitus in pregnancy |
| O24.9* | Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium |
| O24.91* | Unspecified diabetes mellitus in pregnancy |
| O25* | Malnutrition in pregnancy, childbirth and the puerperium |
| O25.1* | Malnutrition in pregnancy |
| O26* | Maternal care for other conditions predominantly related to pregnancy |
| O26.0* | Excessive weight gain in pregnancy |
| O26.1* | Low weight gain in pregnancy |
| O26.2* | Pregnancy care for patient with recurrent pregnancy loss |
| O26.3* | Retained intrauterine contraceptive device in pregnancy |
| O26.4* | Herpes gestationis |
| O26.5* | Maternal hypotension syndrome |
| O26.6* | Liver and biliary tract disorders in pregnancy, childbirth and the puerperium |
| O26.61* | Liver and biliary tract disorders in pregnancy |
| O26.7* | Subluxation of symphysis (pubis) in pregnancy, childbirth and the puerperium |
| O26.71* | Subluxation of symphysis (pubis) in pregnancy |
| O26.8* | Other specified pregnancy related conditions |
| O26.81* | Pregnancy related exhaustion and fatigue |
| O26.82* | Pregnancy related peripheral neuritis |
| O26.83* | Pregnancy related renal disease |
| O26.84* | Uterine size-date discrepancy complicating pregnancy |
| O26.85* | Spotting complicating pregnancy |
| O26.87* | Cervical shortening |
| O26.89* | Other specified pregnancy related conditions |
| O26.9* | Pregnancy related conditions, unspecified |
| O28* | Abnormal findings on antenatal screening of mother |
| O29* | Complications of anesthesia during pregnancy |
| O29.0* | Pulmonary complications of anesthesia during pregnancy |
| O29.01* | Aspiration pneumonitis due to anesthesia during pregnancy |
| O29.02* | Pressure collapse of lung due to anesthesia during pregnancy |
| O29.09* | Other pulmonary complications of anesthesia during pregnancy |
| O29.1* | Cardiac complications of anesthesia during pregnancy |
| O29.11* | Cardiac arrest due to anesthesia during pregnancy |
| O29.12* | Cardiac failure due to anesthesia during pregnancy |
| O29.19* | Other cardiac complications of anesthesia during pregnancy |
| O29.2* | Central nervous system complications of anesthesia during pregnancy |
| O29.21* | Cerebral anoxia due to anesthesia during pregnancy |
| O29.29* | Other central nervous system complications of anesthesia during pregnancy |
| O29.3* | Toxic reaction to local anesthesia during pregnancy |
| O29.3X* | Toxic reaction to local anesthesia during pregnancy |
| O29.4* | Spinal and epidural anesthesia induced headache during pregnancy |
| O29.5* | Other complications of spinal and epidural anesthesia during pregnancy |
| O29.5X* | Other complications of spinal and epidural anesthesia during pregnancy |
| O29.6* | Failed or difficult intubation for anesthesia during pregnancy |
| O29.8* | Other complications of anesthesia during pregnancy |
| O29.8X* | Other complications of anesthesia during pregnancy |
| O29.9* | Unspecified complication of anesthesia during pregnancy |
| O30* | Multiple gestation |
| O30.0* | Twin pregnancy |
| O30.00* | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs |
| O30.01* | Twin pregnancy, monochorionic/monoamniotic |
| O30.02* | Conjoined twin pregnancy |
| O30.03* | Twin pregnancy, monochorionic/diamniotic |
| O30.04* | Twin pregnancy, dichorionic/diamniotic |
| O30.09* | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs |
| O30.1* | Triplet pregnancy |
| O30.10* | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs |
| O30.11* | Triplet pregnancy with two or more monochorionic fetuses |
| O30.12* | Triplet pregnancy with two or more monoamniotic fetuses |
| O30.13* | Triplet pregnancy, trichorionic/triamniotic |
| O30.19* | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs |
| O30.2* | Quadruplet pregnancy |
| O30.20* | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs |
| O30.21* | Quadruplet pregnancy with two or more monochorionic fetuses |
| O30.22* | Quadruplet pregnancy with two or more monoamniotic fetuses |
| O30.23* | Quadruplet pregnancy, quadrachorionic/quadra-amniotic |
| O30.29* | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs |
| O30.8* | Other specified multiple gestation |
| O30.80* | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs |
| O30.81* | Other specified multiple gestation with two or more monochorionic fetuses |
| O30.82* | Other specified multiple gestation with two or more monoamniotic fetuses |
| O30.83* | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses |
| O30.89* | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs |
| O30.9* | Multiple gestation, unspecified |
| O31* | Complications specific to multiple gestation |
| O31.0* | Papyraceous fetus |
| O31.00* | Papyraceous fetus, unspecified trimester |
| O31.01* | Papyraceous fetus, first trimester |
| O31.02* | Papyraceous fetus, second trimester |
| O31.03* | Papyraceous fetus, third trimester |
| O31.1* | Continuing pregnancy after spontaneous abortion of one fetus or more |
| O31.10* | Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester |
| O31.11* | Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester |
| O31.12* | Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester |
| O31.13* | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester |
| O31.2* | Continuing pregnancy after intrauterine death of one fetus or more |
| O31.20* | Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester |
| O31.21* | Continuing pregnancy after intrauterine death of one fetus or more, first trimester |
| O31.22* | Continuing pregnancy after intrauterine death of one fetus or more, second trimester |
| O31.23* | Continuing pregnancy after intrauterine death of one fetus or more, third trimester |
| O31.3* | Continuing pregnancy after elective fetal reduction of one fetus or more |
| O31.30* | Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester |
| O31.31* | Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester |
| O31.32* | Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester |
| O31.33* | Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester |
| O31.8* | Other complications specific to multiple gestation |
| O31.8X* | Other complications specific to multiple gestation |
| O31.8X1* | Other complications specific to multiple gestation, first trimester |
| O31.8X2* | Other complications specific to multiple gestation, second trimester |
| O31.8X3* | Other complications specific to multiple gestation, third trimester |
| O31.8X9* | Other complications specific to multiple gestation, unspecified trimester |
| O32* | Maternal care for malpresentation of fetus |
| O32.0* | Maternal care for unstable lie |
| O32.1* | Maternal care for breech presentation |
| O32.2* | Maternal care for transverse and oblique lie |
| O32.3* | Maternal care for face, brow and chin presentation |
| O32.4* | Maternal care for high head at term |
| O32.6* | Maternal care for compound presentation |
| O32.8* | Maternal care for other malpresentation of fetus |
| O32.9* | Maternal care for malpresentation of fetus, unspecified |
| O33* | Maternal care for disproportion |
| O33.3* | Maternal care for disproportion due to outlet contraction of pelvis |
| O33.4* | Maternal care for disproportion of mixed maternal and fetal origin |
| O33.5* | Maternal care for disproportion due to unusually large fetus |
| O33.6* | Maternal care for disproportion due to hydrocephalic fetus |
| O33.7* | Maternal care for disproportion due to other fetal deformities |
| O34* | Maternal care for abnormality of pelvic organs |
| O34.0* | Maternal care for congenital malformation of uterus |
| O34.1* | Maternal care for benign tumor of corpus uteri |
| O34.2* | Maternal care due to uterine scar from previous surgery |
| O34.21* | Maternal care for scar from previous cesarean delivery |
| O34.3* | Maternal care for cervical incompetence |
| O34.4* | Maternal care for other abnormalities of cervix |
| O34.5* | Maternal care for other abnormalities of gravid uterus |
| O34.51* | Maternal care for incarceration of gravid uterus |
| O34.52* | Maternal care for prolapse of gravid uterus |
| O34.53* | Maternal care for retroversion of gravid uterus |
| O34.59* | Maternal care for other abnormalities of gravid uterus |
| O34.6* | Maternal care for abnormality of vagina |
| O34.7* | Maternal care for abnormality of vulva and perineum |
| O34.8* | Maternal care for other abnormalities of pelvic organs |
| O34.9* | Maternal care for abnormality of pelvic organ, unspecified |
| O35* | Maternal care for known or suspected fetal abnormality and damage |
| O35.0* | Maternal care for (suspected) central nervous system malformation in fetus |
| O35.1* | Maternal care for (suspected) chromosomal abnormality in fetus |
| O35.2* | Maternal care for (suspected) hereditary disease in fetus |
| O35.3* | Maternal care for (suspected) damage to fetus from viral disease in mother |
| O35.4* | Maternal care for (suspected) damage to fetus from alcohol |
| O35.5* | Maternal care for (suspected) damage to fetus by drugs |
| O35.6* | Maternal care for (suspected) damage to fetus by radiation |
| O35.7* | Maternal care for (suspected) damage to fetus by other medical procedures |
| O35.8* | Maternal care for other (suspected) fetal abnormality and damage |
| O35.9* | Maternal care for (suspected) fetal abnormality and damage, unspecified |
| O36* | Maternal care for other fetal problems |
| O36.0* | Maternal care for rhesus isoimmunization |
| O36.01* | Maternal care for anti-D [Rh] antibodies |
| O36.011* | Maternal care for anti-D [Rh] antibodies, first trimester |
| O36.012* | Maternal care for anti-D [Rh] antibodies, second trimester |
| O36.013* | Maternal care for anti-D [Rh] antibodies, third trimester |
| O36.019* | Maternal care for anti-D [Rh] antibodies, unspecified trimester |
| O36.09* | Maternal care for other rhesus isoimmunization |
| O36.091* | Maternal care for other rhesus isoimmunization, first trimester |
| O36.092* | Maternal care for other rhesus isoimmunization, second trimester |
| O36.093* | Maternal care for other rhesus isoimmunization, third trimester |
| O36.099* | Maternal care for other rhesus isoimmunization, unspecified trimester |
| O36.1* | Maternal care for other isoimmunization |
| O36.11* | Maternal care for Anti-A sensitization |
| O36.111* | Maternal care for Anti-A sensitization, first trimester |
| O36.112* | Maternal care for Anti-A sensitization, second trimester |
| O36.113* | Maternal care for Anti-A sensitization, third trimester |
| O36.119* | Maternal care for Anti-A sensitization, unspecified trimester |
| O36.19* | Maternal care for other isoimmunization |
| O36.191* | Maternal care for other isoimmunization, first trimester |
| O36.192* | Maternal care for other isoimmunization, second trimester |
| O36.193* | Maternal care for other isoimmunization, third trimester |
| O36.199* | Maternal care for other isoimmunization, unspecified trimester |
| O36.2* | Maternal care for hydrops fetalis |
| O36.20* | Maternal care for hydrops fetalis, unspecified trimester |
| O36.21* | Maternal care for hydrops fetalis, first trimester |
| O36.22* | Maternal care for hydrops fetalis, second trimester |
| O36.23* | Maternal care for hydrops fetalis, third trimester |
| O36.4* | Maternal care for intrauterine death |
| O36.5* | Maternal care for known or suspected poor fetal growth |
| O36.51* | Maternal care for known or suspected placental insufficiency |
| O36.511* | Maternal care for known or suspected placental insufficiency, first trimester |
| O36.512* | Maternal care for known or suspected placental insufficiency, second trimester |
| O36.513* | Maternal care for known or suspected placental insufficiency, third trimester |
| O36.519* | Maternal care for known or suspected placental insufficiency, unspecified trimester |
| O36.59* | Maternal care for other known or suspected poor fetal growth |
| O36.591* | Maternal care for other known or suspected poor fetal growth, first trimester |
| O36.592* | Maternal care for other known or suspected poor fetal growth, second trimester |
| O36.593* | Maternal care for other known or suspected poor fetal growth, third trimester |
| O36.599* | Maternal care for other known or suspected poor fetal growth, unspecified trimester |
| O36.6* | Maternal care for excessive fetal growth |
| O36.60* | Maternal care for excessive fetal growth, unspecified trimester |
| O36.61* | Maternal care for excessive fetal growth, first trimester |
| O36.62* | Maternal care for excessive fetal growth, second trimester |
| O36.63* | Maternal care for excessive fetal growth, third trimester |
| O36.7* | Maternal care for viable fetus in abdominal pregnancy |
| O36.70* | Maternal care for viable fetus in abdominal pregnancy, unspecified trimester |
| O36.71* | Maternal care for viable fetus in abdominal pregnancy, first trimester |
| O36.72* | Maternal care for viable fetus in abdominal pregnancy, second trimester |
| O36.73* | Maternal care for viable fetus in abdominal pregnancy, third trimester |
| O36.8* | Maternal care for other specified fetal problems |
| O36.80* | Pregnancy with inconclusive fetal viability |
| O36.81* | Decreased fetal movements |
| O36.812* | Decreased fetal movements, second trimester |
| O36.813* | Decreased fetal movements, third trimester |
| O36.819* | Decreased fetal movements, unspecified trimester |
| O36.82* | Fetal anemia and thrombocytopenia |
| O36.821* | Fetal anemia and thrombocytopenia, first trimester |
| O36.822* | Fetal anemia and thrombocytopenia, second trimester |
| O36.823* | Fetal anemia and thrombocytopenia, third trimester |
| O36.829* | Fetal anemia and thrombocytopenia, unspecified trimester |
| O36.83* | Maternal care for abnormalities of the fetal heart rate or rhythm |
| O36.831* | Maternal care for abnormalities of the fetal heart rate or rhythm, first trimester |
| O36.832* | Maternal care for abnormalities of the fetal heart rate or rhythm, second trimester |
| O36.833* | Maternal care for abnormalities of the fetal heart rate or rhythm, third trimester |
| O36.839* | Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester |
| O36.89* | Maternal care for other specified fetal problems |
| O36.891* | Maternal care for other specified fetal problems, first trimester |
| O36.892* | Maternal care for other specified fetal problems, second trimester |
| O36.893* | Maternal care for other specified fetal problems, third trimester |
| O36.899* | Maternal care for other specified fetal problems, unspecified trimester |
| O36.9* | Maternal care for fetal problem, unspecified |
| O36.90* | Maternal care for fetal problem, unspecified, unspecified trimester |
| O36.91* | Maternal care for fetal problem, unspecified, first trimester |
| O36.92* | Maternal care for fetal problem, unspecified, second trimester |
| O36.93* | Maternal care for fetal problem, unspecified, third trimester |
| O40* | Polyhydramnios |
| O40.1* | Polyhydramnios, first trimester |
| O40.2* | Polyhydramnios, second trimester |
| O40.3* | Polyhydramnios, third trimester |
| O40.9* | Polyhydramnios, unspecified trimester |
| O41* | Other disorders of amniotic fluid and membranes |
| O41.0* | Oligohydramnios |
| 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 |
| O41.8* | 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 |
| O41.8X3* | Other specified disorders of amniotic fluid and membranes, third trimester |
| O41.8X9* | Other specified disorders of amniotic fluid and membranes, unspecified trimester |
| O41.9* | Disorder of amniotic fluid and membranes, unspecified |
| O41.90* | Disorder of amniotic fluid and membranes, unspecified, unspecified trimester |
| O41.91* | Disorder of amniotic fluid and membranes, unspecified, first trimester |
| O41.92* | Disorder of amniotic fluid and membranes, unspecified, second trimester |
| O41.93* | Disorder of amniotic fluid and membranes, unspecified, third trimester |
| O42* | Premature rupture of membranes |
| O42.0* | 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 |
| O42.1* | 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 |
| O42.9* | 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 |
| O43* | Placental disorders |
| O43.0* | Placental transfusion syndromes |
| O43.01* | Fetomaternal placental transfusion syndrome |
| O43.02* | Fetus-to-fetus placental transfusion syndrome |
| O43.1* | Malformation of placenta |
| O43.10* | Malformation of placenta, unspecified |
| O43.11* | Circumvallate placenta |
| O43.12* | Velamentous insertion of umbilical cord |
| O43.19* | Other malformation of placenta |
| O43.2* | Morbidly adherent placenta |
| O43.21* | Placenta accreta |
| O43.22* | Placenta increta |
| O43.23* | Placenta percreta |
| O43.8* | Other placental disorders |
| O43.81* | Placental infarction |
| O43.89* | Other placental disorders |
| O43.9* | Unspecified placental disorder |
| O44* | Placenta previa |
| O44.0* | Complete placenta previa NOS or without hemorrhage |
| O44.1* | Complete placenta previa with hemorrhage |
| O44.2* | Partial placenta previa without hemorrhage |
| O44.3* | Partial placenta previa with hemorrhage |
| O44.4* | Low lying placenta NOS or without hemorrhage |
| O44.5* | Low lying placenta with hemorrhage |
| O45* | Premature separation of placenta [abruptio placentae] |
| O45.0* | Premature separation of placenta with coagulation defect |
| O45.00* | Premature separation of placenta with coagulation defect, unspecified |
| O45.01* | Premature separation of placenta with afibrinogenemia |
| O45.02* | Premature separation of placenta with disseminated intravascular coagulation |
| O45.09* | Premature separation of placenta with other coagulation defect |
| O45.8* | Other premature separation of placenta |
| O45.8X* | Other premature separation of placenta |
| O45.9* | Premature separation of placenta, unspecified |
| O46* | Antepartum hemorrhage, not elsewhere classified |
| O46.0* | Antepartum hemorrhage with coagulation defect |
| O46.00* | Antepartum hemorrhage with coagulation defect, unspecified |
| O46.01* | Antepartum hemorrhage with afibrinogenemia |
| O46.02* | Antepartum hemorrhage with disseminated intravascular coagulation |
| O46.09* | Antepartum hemorrhage with other coagulation defect |
| O46.8* | Other antepartum hemorrhage |
| O46.8X* | Other antepartum hemorrhage |
| O46.9* | Antepartum hemorrhage, unspecified |
| O47* | False labor |
| O47.0* | False labor before 37 completed weeks of gestation |
| O48* | Late pregnancy |
| O60* | Preterm labor |
| O60.0* | Preterm labor without delivery |
| O60.1* | Preterm labor with preterm delivery |
| O60.10* | Preterm labor with preterm delivery, unspecified trimester |
| O60.12* | Preterm labor second trimester with preterm delivery second trimester |
| O60.13* | Preterm labor second trimester with preterm delivery third trimester |
| O60.14* | Preterm labor third trimester with preterm delivery third trimester |
| O60.2* | Term delivery with preterm labor |
| O60.20* | Term delivery with preterm labor, unspecified trimester |
| O60.22* | Term delivery with preterm labor, second trimester |
| O60.23* | Term delivery with preterm labor, third trimester |
| O61* | Failed induction of labor |
| O62* | Abnormalities of forces of labor |
| O63* | Long labor |
| O64* | Obstructed labor due to malposition and malpresentation of fetus |
| O64.0* | Obstructed labor due to incomplete rotation of fetal head |
| O64.1* | Obstructed labor due to breech presentation |
| O64.2* | Obstructed labor due to face presentation |
| O64.3* | Obstructed labor due to brow presentation |
| O64.4* | Obstructed labor due to shoulder presentation |
| O64.5* | Obstructed labor due to compound presentation |
| O64.8* | Obstructed labor due to other malposition and malpresentation |
| O64.9* | Obstructed labor due to malposition and malpresentation, unspecified |
| O65* | Obstructed labor due to maternal pelvic abnormality |
| O66* | Other obstructed labor |
| O66.4* | Failed trial of labor |
| O67* | Labor and delivery complicated by intrapartum hemorrhage, not elsewhere classified |
| O69* | Labor and delivery complicated by umbilical cord complications |
| O69.0* | Labor and delivery complicated by prolapse of cord |
| O69.1* | Labor and delivery complicated by cord around neck, with compression |
| O69.2* | Labor and delivery complicated by other cord entanglement, with compression |
| O69.3* | Labor and delivery complicated by short cord |
| O69.4* | Labor and delivery complicated by vasa previa |
| O69.5* | Labor and delivery complicated by vascular lesion of cord |
| O69.8* | Labor and delivery complicated by other cord complications |
| O69.81* | Labor and delivery complicated by cord around neck, without compression |
| O69.82* | Labor and delivery complicated by other cord entanglement, without compression |
| O69.89* | Labor and delivery complicated by other cord complications |
| O69.9* | Labor and delivery complicated by cord complication, unspecified |
| O70* | Perineal laceration during delivery |
| O70.2* | Third degree perineal laceration during delivery |
| O71* | Other obstetric trauma |
| O71.0* | Rupture of uterus (spontaneous) before onset of labor |
| O71.8* | Other specified obstetric trauma |
| O72* | Postpartum hemorrhage |
| O73* | Retained placenta and membranes, without hemorrhage |
| O74* | Complications of anesthesia during labor and delivery |
| O75* | Other complications of labor and delivery, not elsewhere classified |
| O75.8* | Other specified complications of labor and delivery |
| O77* | Other fetal stress complicating labor and delivery |
| O86* | Other puerperal infections |
| O86.0* | Infection of obstetric surgical wound |
| O86.1* | Other infection of genital tract following delivery |
| O86.2* | Urinary tract infection following delivery |
| O86.8* | Other specified puerperal infections |
| O87* | Venous complications and hemorrhoids in the puerperium |
| O88* | Obstetric embolism |
| O88.0* | Obstetric air embolism |
| O88.01* | Obstetric air embolism in pregnancy |
| O88.1* | Amniotic fluid embolism |
| O88.11* | Amniotic fluid embolism in pregnancy |
| O88.2* | Obstetric thromboembolism |
| O88.21* | Thromboembolism in pregnancy |
| O88.3* | Obstetric pyemic and septic embolism |
| O88.31* | Pyemic and septic embolism in pregnancy |
| O88.8* | Other obstetric embolism |
| O88.81* | Other embolism in pregnancy |
| O89* | Complications of anesthesia during the puerperium |
| O89.0* | Pulmonary complications of anesthesia during the puerperium |
| O90* | Complications of the puerperium, not elsewhere classified |
| O90.8* | Other complications of the puerperium, not elsewhere classified |
| O91* | Infections of breast associated with pregnancy, the puerperium and lactation |
| O91.0* | Infection of nipple associated with pregnancy, the puerperium and lactation |
| O91.01* | Infection of nipple associated with pregnancy |
| O91.1* | Abscess of breast associated with pregnancy, the puerperium and lactation |
| O91.11* | Abscess of breast associated with pregnancy |
| O91.2* | Nonpurulent mastitis associated with pregnancy, the puerperium and lactation |
| O91.21* | Nonpurulent mastitis associated with pregnancy |
| O92* | Other disorders of breast and disorders of lactation associated with pregnancy and the puerperium |
| O92.0* | Retracted nipple associated with pregnancy, the puerperium, and lactation |
| O92.01* | Retracted nipple associated with pregnancy |
| O92.1* | Cracked nipple associated with pregnancy, the puerperium, and lactation |
| O92.11* | Cracked nipple associated with pregnancy |
| O92.2* | Other and unspecified disorders of breast associated with pregnancy and the puerperium |
| O92.7* | Other and unspecified disorders of lactation |
| O98* | Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium |
| O98.0* | Tuberculosis complicating pregnancy, childbirth and the puerperium |
| O98.01* | Tuberculosis complicating pregnancy |
| O98.1* | Syphilis complicating pregnancy, childbirth and the puerperium |
| O98.11* | Syphilis complicating pregnancy |
| O98.2* | Gonorrhea complicating pregnancy, childbirth and the puerperium |
| O98.21* | Gonorrhea complicating pregnancy |
| O98.3* | Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium |
| O98.31* | Other infections with a predominantly sexual mode of transmission complicating pregnancy |
| O98.4* | Viral hepatitis complicating pregnancy, childbirth and the puerperium |
| O98.41* | Viral hepatitis complicating pregnancy |
| O98.5* | Other viral diseases complicating pregnancy, childbirth and the puerperium |
| O98.51* | Other viral diseases complicating pregnancy |
| O98.6* | Protozoal diseases complicating pregnancy, childbirth and the puerperium |
| O98.61* | Protozoal diseases complicating pregnancy |
| O98.7* | Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium |
| O98.71* | Human immunodeficiency virus [HIV] disease complicating pregnancy |
| O98.8* | Other maternal infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium |
| O98.81* | Other maternal infectious and parasitic diseases complicating pregnancy |
| O98.9* | Unspecified maternal infectious and parasitic disease complicating pregnancy, childbirth and the puerperium |
| O98.91* | Unspecified maternal infectious and parasitic disease complicating pregnancy |
| O99* | Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium |
| O99.0* | Anemia complicating pregnancy, childbirth and the puerperium |
| O99.01* | Anemia complicating pregnancy |
| O99.1* | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, childbirth and the puerperium |
| O99.11* | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy |
| O99.2* | Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium |
| O99.21* | Obesity complicating pregnancy, childbirth, and the puerperium |
| O99.28* | Other endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium |
| O99.3* | Mental disorders and diseases of the nervous system complicating pregnancy, childbirth and the puerperium |
| O99.31* | Alcohol use complicating pregnancy, childbirth, and the puerperium |
| O99.32* | Drug use complicating pregnancy, childbirth, and the puerperium |
| O99.33* | Tobacco use disorder complicating pregnancy, childbirth, and the puerperium |
| O99.34* | Other mental disorders complicating pregnancy, childbirth, and the puerperium |
| O99.35* | Diseases of the nervous system complicating pregnancy, childbirth, and the puerperium |
| O99.4* | Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium |
| O99.41* | Diseases of the circulatory system complicating pregnancy |
| O99.5* | Diseases of the respiratory system complicating pregnancy, childbirth and the puerperium |
| O99.51* | Diseases of the respiratory system complicating pregnancy |
| O99.6* | Diseases of the digestive system complicating pregnancy, childbirth and the puerperium |
| O99.61* | Diseases of the digestive system complicating pregnancy |
| O99.7* | Diseases of the skin and subcutaneous tissue complicating pregnancy, childbirth and the puerperium |
| O99.71* | Diseases of the skin and subcutaneous tissue complicating pregnancy |
| O99.8* | Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium |
| O99.81* | Abnormal glucose complicating pregnancy, childbirth and the puerperium |
| O99.82* | Streptococcus B carrier state complicating pregnancy, childbirth and the puerperium |
| O99.83* | Other infection carrier state complicating pregnancy, childbirth and the puerperium |
| O99.84* | Bariatric surgery status complicating pregnancy, childbirth and the puerperium |
| O9A* | Maternal malignant neoplasms, traumatic injuries and abuse classifiable elsewhere but complicating pregnancy, childbirth and the puerperium |
