| O0900 | Supervision of pregnancy with history of infertility, unspecified trimester |
| O0901 | Supervision of pregnancy with history of infertility, first trimester |
| O0902 | Supervision of pregnancy with history of infertility, second trimester |
| O0903 | Supervision of pregnancy with history of infertility, third trimester |
| O0910 | Supervision of pregnancy with history of ectopic or molar pregnancy, unspecified trimester |
| O0911 | Supervision of pregnancy with history of ectopic or molar pregnancy, first trimester |
| O0912 | Supervision of pregnancy with history of ectopic or molar pregnancy, second trimester |
| O0913 | Supervision of pregnancy with history of ectopic or molar pregnancy, third trimester |
| O09211 | Supervision of pregnancy with history of pre-term labor, first trimester |
| O09212 | Supervision of pregnancy with history of pre-term labor, second trimester |
| O09213 | Supervision of pregnancy with history of pre-term labor, third trimester |
| O09219 | Supervision of pregnancy with history of pre-term labor, unspecified trimester |
| O09291 | Supervision of pregnancy with other poor reproductive or obstetric history, first trimester |
| O09292 | Supervision of pregnancy with other poor reproductive or obstetric history, second trimester |
| O09293 | Supervision of pregnancy with other poor reproductive or obstetric history, third trimester |
| O09299 | Supervision of pregnancy with other poor reproductive or obstetric history, unspecified trimester |
| O0930 | Supervision of pregnancy with insufficient antenatal care, unspecified trimester |
| O0931 | Supervision of pregnancy with insufficient antenatal care, first trimester |
| O0932 | Supervision of pregnancy with insufficient antenatal care, second trimester |
| O0933 | Supervision of pregnancy with insufficient antenatal care, third trimester |
| O0940 | Supervision of pregnancy with grand multiparity, unspecified trimester |
| O09511 | Supervision of elderly primigravida, first trimester |
| O09512 | Supervision of elderly primigravida, second trimester |
| O09513 | Supervision of elderly primigravida, third trimester |
| O09519 | Supervision of elderly primigravida, unspecified trimester |
| O09521 | Supervision of elderly multigravida, first trimester |
| O09522 | Supervision of elderly multigravida, second trimester |
| O09523 | Supervision of elderly multigravida, third trimester |
| O09529 | Supervision of elderly multigravida, unspecified trimester |
| O09611 | Supervision of young primigravida, first trimester |
| O09612 | Supervision of young primigravida, second trimester |
| O09613 | Supervision of young primigravida, third trimester |
| O09619 | Supervision of young primigravida, unspecified trimester |
| O09621 | Supervision of young multigravida, first trimester |
| O09622 | Supervision of young multigravida, second trimester |
| O09623 | Supervision of young multigravida, third trimester |
| O09629 | Supervision of young multigravida, unspecified trimester |
| O0970 | Supervision of high risk pregnancy due to social problems, unspecified trimester |
| O0971 | Supervision of high risk pregnancy due to social problems, first trimester |
| O0972 | Supervision of high risk pregnancy due to social problems, second trimester |
| O0973 | Supervision of high risk pregnancy due to social problems, third trimester |
| O09811 | Supervision of pregnancy resulting from assisted reproductive technology, first trimester |
| O09812 | Supervision of pregnancy resulting from assisted reproductive technology, second trimester |
| O09813 | Supervision of pregnancy resulting from assisted reproductive technology, third trimester |
| O09819 | Supervision of pregnancy resulting from assisted reproductive technology, unspecified trimester |
| O09821 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, first trimester |
| O09822 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, second trimester |
| O09823 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, third trimester |
| O09829 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, unspecified trimester |
| O09891 | Supervision of other high risk pregnancies, first trimester |
| O09892 | Supervision of other high risk pregnancies, second trimester |
| O09893 | Supervision of other high risk pregnancies, third trimester |
| O09899 | Supervision of other high risk pregnancies, unspecified trimester |
| O0990 | Supervision of high risk pregnancy, unspecified, unspecified trimester |
| O0991 | Supervision of high risk pregnancy, unspecified, first trimester |
| O0992 | Supervision of high risk pregnancy, unspecified, second trimester |
| O0993 | Supervision of high risk pregnancy, unspecified, third trimester |
| O10019 | Pre-existing essential hypertension complicating pregnancy, unspecified trimester |
| O10119 | Pre-existing hypertensive heart disease complicating pregnancy, unspecified trimester |
| O10219 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, unspecified trimester |
| O10319 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, unspecified trimester |
| O10419 | Pre-existing secondary hypertension complicating pregnancy, unspecified trimester |
| O10919 | Unspecified pre-existing hypertension complicating pregnancy, unspecified trimester |
| O119 | Pre-existing hypertension with pre-eclampsia, unspecified trimester |
| O1200 | Gestational edema, unspecified trimester |
| O1210 | Gestational proteinuria, unspecified trimester |
| O1220 | Gestational edema with proteinuria, unspecified trimester |
| O139 | Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester |
| O1400 | Mild to moderate pre-eclampsia, unspecified trimester |
| O1410 | Severe pre-eclampsia, unspecified trimester |
| O1420 | HELLP syndrome (HELLP), unspecified trimester |
| O1490 | Unspecified pre-eclampsia, unspecified trimester |
| O1500 | Eclampsia in pregnancy, unspecified trimester |
| O159 | Eclampsia, unspecified as to time period |
| O169 | Unspecified maternal hypertension, unspecified trimester |
| O2200 | Varicose veins of lower extremity in pregnancy, unspecified trimester |
| O2210 | Genital varices in pregnancy, unspecified trimester |
| O2220 | Superficial thrombophlebitis in pregnancy, unspecified trimester |
| O2230 | Deep phlebothrombosis in pregnancy, unspecified trimester |
| O2240 | Hemorrhoids in pregnancy, unspecified trimester |
| O2250 | Cerebral venous thrombosis in pregnancy, unspecified trimester |
| O228X9 | Other venous complications in pregnancy, unspecified trimester |
| O2290 | Venous complication in pregnancy, unspecified, unspecified trimester |
| O2300 | Infections of kidney in pregnancy, unspecified trimester |
| O2310 | Infections of bladder in pregnancy, unspecified trimester |
| O2320 | Infections of urethra in pregnancy, unspecified trimester |
| O2330 | Infections of other parts of urinary tract in pregnancy, unspecified trimester |
| O2340 | Unspecified infection of urinary tract in pregnancy, unspecified trimester |
| O23519 | Infections of cervix in pregnancy, unspecified trimester |
| O23529 | Salpingo-oophoritis in pregnancy, unspecified trimester |
| O23599 | Infection of other part of genital tract in pregnancy, unspecified trimester |
| O2390 | Unspecified genitourinary tract infection in pregnancy, unspecified trimester |
| O24019 | Pre-existing diabetes mellitus, type 1, in pregnancy, unspecified trimester |
| O24119 | Pre-existing diabetes mellitus, type 2, in pregnancy, unspecified trimester |
| O24319 | Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester |
| O24819 | Other pre-existing diabetes mellitus in pregnancy, unspecified trimester |
| O24919 | Unspecified diabetes mellitus in pregnancy, unspecified trimester |
| O2510 | Malnutrition in pregnancy, unspecified trimester |
| O2600 | Excessive weight gain in pregnancy, unspecified trimester |
| O2610 | Low weight gain in pregnancy, unspecified trimester |
| O2620 | Pregnancy care for patient with recurrent pregnancy loss, unspecified trimester |
| O2630 | Retained intrauterine contraceptive device in pregnancy, unspecified trimester |
| O2640 | Herpes gestationis, unspecified trimester |
| O26619 | Liver and biliary tract disorders in pregnancy, unspecified trimester |
| O26719 | Subluxation of symphysis (pubis) in pregnancy, unspecified trimester |
| O26819 | Pregnancy related exhaustion and fatigue, unspecified trimester |
| O26829 | Pregnancy related peripheral neuritis, unspecified trimester |
| O26839 | Pregnancy related renal disease, unspecified trimester |
| O26849 | Uterine size-date discrepancy, unspecified trimester |
| O26859 | Spotting complicating pregnancy, unspecified trimester |
| O26879 | Cervical shortening, unspecified trimester |
| O26899 | Other specified pregnancy related conditions, unspecified trimester |
| O2690 | Pregnancy related conditions, unspecified, unspecified trimester |
| O29019 | Aspiration pneumonitis due to anesthesia during pregnancy, unspecified trimester |
| O29029 | Pressure collapse of lung due to anesthesia during pregnancy, unspecified trimester |
| O29099 | Other pulmonary complications of anesthesia during pregnancy, unspecified trimester |
| O29119 | Cardiac arrest due to anesthesia during pregnancy, unspecified trimester |
| O29129 | Cardiac failure due to anesthesia during pregnancy, unspecified trimester |
| O29199 | Other cardiac complications of anesthesia during pregnancy, unspecified trimester |
| O29219 | Cerebral anoxia due to anesthesia during pregnancy, unspecified trimester |
| O29299 | Other central nervous system complications of anesthesia during pregnancy, unspecified trimester |
| O293X9 | Toxic reaction to local anesthesia during pregnancy, unspecified trimester |
| O2940 | Spinal and epidural anesthesia induced headache during pregnancy, unspecified trimester |
| O295X9 | Other complications of spinal and epidural anesthesia during pregnancy, unspecified trimester |
| O2960 | Failed or difficult intubation for anesthesia during pregnancy, unspecified trimester |
| O298X9 | Other complications of anesthesia during pregnancy, unspecified trimester |
| O2990 | Unspecified complication of anesthesia during pregnancy, unspecified trimester |
| O30009 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O30019 | Twin pregnancy, monochorionic/monoamniotic, unspecified trimester |
| O30029 | Conjoined twin pregnancy, unspecified trimester |
| O30039 | Twin pregnancy, monochorionic/diamniotic, unspecified trimester |
| O30049 | Twin pregnancy, dichorionic/diamniotic, unspecified trimester |
| O30099 | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O30109 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O30119 | Triplet pregnancy with two or more monochorionic fetuses, unspecified trimester |
| O30129 | Triplet pregnancy with two or more monoamniotic fetuses, unspecified trimester |
| O30199 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O30209 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O30219 | Quadruplet pregnancy with two or more monochorionic fetuses, unspecified trimester |
| O30229 | Quadruplet pregnancy with two or more monoamniotic fetuses, unspecified trimester |
| O30299 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O30809 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O30819 | Other specified multiple gestation with two or more monochorionic fetuses, unspecified trimester |
| O30829 | Other specified multiple gestation with two or more monoamniotic fetuses, unspecified trimester |
| O30899 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O3090 | Multiple gestation, unspecified, unspecified trimester |
| O3110X0 | Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, not applicable or unspecified |
| O3110X1 | Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 1 |
| O3110X2 | Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 2 |
| O3110X3 | Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 3 |
| O3110X4 | Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 4 |
| O3110X5 | Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, fetus 5 |
| O3110X9 | Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester, other fetus |
| O3120X0 | Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, not applicable or unspecified |
| O3120X1 | Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 1 |
| O3120X2 | Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 2 |
| O3120X3 | Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 3 |
| O3120X4 | Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 4 |
| O3120X5 | Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, fetus 5 |
| O3120X9 | Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester, other fetus |
| O3130X0 | Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, not applicable or unspecified |
| O3130X1 | Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 1 |
| O3130X2 | Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 2 |
| O3130X3 | Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 3 |
| O3130X4 | Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 4 |
| O3130X5 | Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, fetus 5 |
| O3130X9 | Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester, other fetus |
| O318X90 | Other complications specific to multiple gestation, unspecified trimester, not applicable or unspecified |
| O318X91 | Other complications specific to multiple gestation, unspecified trimester, fetus 1 |
| O318X92 | Other complications specific to multiple gestation, unspecified trimester, fetus 2 |
| O318X93 | Other complications specific to multiple gestation, unspecified trimester, fetus 3 |
| O318X94 | Other complications specific to multiple gestation, unspecified trimester, fetus 4 |
| O318X95 | Other complications specific to multiple gestation, unspecified trimester, fetus 5 |
| O318X99 | Other complications specific to multiple gestation, unspecified trimester, other fetus |
| O3400 | Maternal care for unspecified congenital malformation of uterus, unspecified trimester |
| O3410 | Maternal care for benign tumor of corpus uteri, unspecified trimester |
| O3430 | Maternal care for cervical incompetence, unspecified trimester |
| O3440 | Maternal care for other abnormalities of cervix, unspecified trimester |
| O34519 | Maternal care for incarceration of gravid uterus, unspecified trimester |
| O34529 | Maternal care for prolapse of gravid uterus, unspecified trimester |
| O34539 | Maternal care for retroversion of gravid uterus, unspecified trimester |
| O34599 | Maternal care for other abnormalities of gravid uterus, unspecified trimester |
| O3460 | Maternal care for abnormality of vagina, unspecified trimester |
| O3470 | Maternal care for abnormality of vulva and perineum, unspecified trimester |
| O3480 | Maternal care for other abnormalities of pelvic organs, unspecified trimester |
| O3490 | Maternal care for abnormality of pelvic organ, unspecified, unspecified trimester |
| O360190 | Maternal care for anti-D [Rh] antibodies, unspecified trimester, not applicable or unspecified |
| O360191 | Maternal care for anti-D [Rh] antibodies, unspecified trimester, fetus 1 |
| O360192 | Maternal care for anti-D [Rh] antibodies, unspecified trimester, fetus 2 |
| O360193 | Maternal care for anti-D [Rh] antibodies, unspecified trimester, fetus 3 |
| O360194 | Maternal care for anti-D [Rh] antibodies, unspecified trimester, fetus 4 |
| O360195 | Maternal care for anti-D [Rh] antibodies, unspecified trimester, fetus 5 |
| O360199 | Maternal care for anti-D [Rh] antibodies, unspecified trimester, other fetus |
| O360990 | Maternal care for other rhesus isoimmunization, unspecified trimester, not applicable or unspecified |
| O360991 | Maternal care for other rhesus isoimmunization, unspecified trimester, fetus 1 |
| O360992 | Maternal care for other rhesus isoimmunization, unspecified trimester, fetus 2 |
| O360993 | Maternal care for other rhesus isoimmunization, unspecified trimester, fetus 3 |
| O360994 | Maternal care for other rhesus isoimmunization, unspecified trimester, fetus 4 |
| O360995 | Maternal care for other rhesus isoimmunization, unspecified trimester, fetus 5 |
| O360999 | Maternal care for other rhesus isoimmunization, unspecified trimester, other fetus |
| O361190 | Maternal care for Anti-A sensitization, unspecified trimester, not applicable or unspecified |
| O361191 | Maternal care for Anti-A sensitization, unspecified trimester, fetus 1 |
| O361192 | Maternal care for Anti-A sensitization, unspecified trimester, fetus 2 |
| O361193 | Maternal care for Anti-A sensitization, unspecified trimester, fetus 3 |
| O361194 | Maternal care for Anti-A sensitization, unspecified trimester, fetus 4 |
| O361195 | Maternal care for Anti-A sensitization, unspecified trimester, fetus 5 |
| O361199 | Maternal care for Anti-A sensitization, unspecified trimester, other fetus |
| O361990 | Maternal care for other isoimmunization, unspecified trimester, not applicable or unspecified |
| O361991 | Maternal care for other isoimmunization, unspecified trimester, fetus 1 |
| O361992 | Maternal care for other isoimmunization, unspecified trimester, fetus 2 |
| O361993 | Maternal care for other isoimmunization, unspecified trimester, fetus 3 |
| O361994 | Maternal care for other isoimmunization, unspecified trimester, fetus 4 |
| O361995 | Maternal care for other isoimmunization, unspecified trimester, fetus 5 |
| O361999 | Maternal care for other isoimmunization, unspecified trimester, other fetus |
| O3620X0 | Maternal care for hydrops fetalis, unspecified trimester, not applicable or unspecified |
| O3620X1 | Maternal care for hydrops fetalis, unspecified trimester, fetus 1 |
| O3620X2 | Maternal care for hydrops fetalis, unspecified trimester, fetus 2 |
| O3620X3 | Maternal care for hydrops fetalis, unspecified trimester, fetus 3 |
| O3620X4 | Maternal care for hydrops fetalis, unspecified trimester, fetus 4 |
| O3620X5 | Maternal care for hydrops fetalis, unspecified trimester, fetus 5 |
| O3620X9 | Maternal care for hydrops fetalis, unspecified trimester, other fetus |
| O365190 | Maternal care for known or suspected placental insufficiency, unspecified trimester, not applicable or unspecified |
| O365191 | Maternal care for known or suspected placental insufficiency, unspecified trimester, fetus 1 |
| O365192 | Maternal care for known or suspected placental insufficiency, unspecified trimester, fetus 2 |
| O365193 | Maternal care for known or suspected placental insufficiency, unspecified trimester, fetus 3 |
| O365194 | Maternal care for known or suspected placental insufficiency, unspecified trimester, fetus 4 |
| O365195 | Maternal care for known or suspected placental insufficiency, unspecified trimester, fetus 5 |
| O365199 | Maternal care for known or suspected placental insufficiency, unspecified trimester, other fetus |
| O365990 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, not applicable or unspecified |
| O365991 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 1 |
| O365992 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 2 |
| O365993 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 3 |
| O365994 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 4 |
| O365995 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 5 |
| O365999 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, other fetus |
| O3660X0 | Maternal care for excessive fetal growth, unspecified trimester, not applicable or unspecified |
| O3660X1 | Maternal care for excessive fetal growth, unspecified trimester, fetus 1 |
| O3660X2 | Maternal care for excessive fetal growth, unspecified trimester, fetus 2 |
| O3660X3 | Maternal care for excessive fetal growth, unspecified trimester, fetus 3 |
| O3660X4 | Maternal care for excessive fetal growth, unspecified trimester, fetus 4 |
| O3660X5 | Maternal care for excessive fetal growth, unspecified trimester, fetus 5 |
| O3660X9 | Maternal care for excessive fetal growth, unspecified trimester, other fetus |
| O3670X0 | Maternal care for viable fetus in abdominal pregnancy, unspecified trimester, not applicable or unspecified |
| O3670X1 | Maternal care for viable fetus in abdominal pregnancy, unspecified trimester, fetus 1 |
| O3670X2 | Maternal care for viable fetus in abdominal pregnancy, unspecified trimester, fetus 2 |
| O3670X3 | Maternal care for viable fetus in abdominal pregnancy, unspecified trimester, fetus 3 |
| O3670X4 | Maternal care for viable fetus in abdominal pregnancy, unspecified trimester, fetus 4 |
| O3670X5 | Maternal care for viable fetus in abdominal pregnancy, unspecified trimester, fetus 5 |
| O3670X9 | Maternal care for viable fetus in abdominal pregnancy, unspecified trimester, other fetus |
| O3680X0 | Pregnancy with inconclusive fetal viability, not applicable or unspecified |
| O3680X1 | Pregnancy with inconclusive fetal viability, fetus 1 |
| O3680X2 | Pregnancy with inconclusive fetal viability, fetus 2 |
| O3680X3 | Pregnancy with inconclusive fetal viability, fetus 3 |
| O3680X4 | Pregnancy with inconclusive fetal viability, fetus 4 |
| O3680X5 | Pregnancy with inconclusive fetal viability, fetus 5 |
| O3680X9 | Pregnancy with inconclusive fetal viability, other fetus |
| O368290 | Fetal anemia and thrombocytopenia, unspecified trimester, not applicable or unspecified |
| O368291 | Fetal anemia and thrombocytopenia, unspecified trimester, fetus 1 |
| O368292 | Fetal anemia and thrombocytopenia, unspecified trimester, fetus 2 |
| O368293 | Fetal anemia and thrombocytopenia, unspecified trimester, fetus 3 |
| O368294 | Fetal anemia and thrombocytopenia, unspecified trimester, fetus 4 |
| O368295 | Fetal anemia and thrombocytopenia, unspecified trimester, fetus 5 |
| O368299 | Fetal anemia and thrombocytopenia, unspecified trimester, other fetus |
| O368990 | Maternal care for other specified fetal problems, unspecified trimester, not applicable or unspecified |
| O368991 | Maternal care for other specified fetal problems, unspecified trimester, fetus 1 |
| O368992 | Maternal care for other specified fetal problems, unspecified trimester, fetus 2 |
| O368993 | Maternal care for other specified fetal problems, unspecified trimester, fetus 3 |
| O368994 | Maternal care for other specified fetal problems, unspecified trimester, fetus 4 |
| O368995 | Maternal care for other specified fetal problems, unspecified trimester, fetus 5 |
| O368999 | Maternal care for other specified fetal problems, unspecified trimester, other fetus |
| O3690X0 | Maternal care for fetal problem, unspecified, unspecified trimester, not applicable or unspecified |
| O3690X1 | Maternal care for fetal problem, unspecified, unspecified trimester, fetus 1 |
| O3690X2 | Maternal care for fetal problem, unspecified, unspecified trimester, fetus 2 |
| O3690X3 | Maternal care for fetal problem, unspecified, unspecified trimester, fetus 3 |
| O3690X4 | Maternal care for fetal problem, unspecified, unspecified trimester, fetus 4 |
| O3690X5 | Maternal care for fetal problem, unspecified, unspecified trimester, fetus 5 |
| O3690X9 | Maternal care for fetal problem, unspecified, unspecified trimester, other fetus |
| O409XX0 | Polyhydramnios, unspecified trimester, not applicable or unspecified |
| O409XX1 | Polyhydramnios, unspecified trimester, fetus 1 |
| O409XX2 | Polyhydramnios, unspecified trimester, fetus 2 |
| O409XX3 | Polyhydramnios, unspecified trimester, fetus 3 |
| O409XX4 | Polyhydramnios, unspecified trimester, fetus 4 |
| O409XX5 | Polyhydramnios, unspecified trimester, fetus 5 |
| O409XX9 | Polyhydramnios, unspecified trimester, other fetus |
| O4100X0 | Oligohydramnios, unspecified trimester, not applicable or unspecified |
| O4100X1 | Oligohydramnios, unspecified trimester, fetus 1 |
| O4100X2 | Oligohydramnios, unspecified trimester, fetus 2 |
| O4100X3 | Oligohydramnios, unspecified trimester, fetus 3 |
| O4100X4 | Oligohydramnios, unspecified trimester, fetus 4 |
| O4100X5 | Oligohydramnios, unspecified trimester, fetus 5 |
| O4100X9 | Oligohydramnios, unspecified 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 |
| O43019 | Fetomaternal placental transfusion syndrome, unspecified trimester |
| O43029 | Fetus-to-fetus placental transfusion syndrome, unspecified trimester |
| O43109 | Malformation of placenta, unspecified, unspecified 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 |
| O43199 | Other malformation of placenta, unspecified trimester |
| O43219 | Placenta accreta, unspecified trimester |
| O43229 | Placenta increta, unspecified trimester |
| O43239 | Placenta percreta, unspecified trimester |
| O43819 | Placental infarction, unspecified trimester |
| O43899 | Other placental disorders, unspecified trimester |
| O4390 | Unspecified placental disorder, unspecified trimester |
| O4400 | Placenta previa specified as without hemorrhage, unspecified trimester |
| O4410 | Placenta previa with hemorrhage, unspecified trimester |
| O45009 | Premature separation of placenta with coagulation defect, unspecified, unspecified trimester |
| O45019 | Premature separation of placenta with afibrinogenemia, unspecified trimester |
| O45029 | Premature separation of placenta with disseminated intravascular coagulation, unspecified trimester |
| O45099 | Premature separation of placenta with other coagulation defect, unspecified trimester |
| O458X9 | Other premature separation of placenta, unspecified trimester |
| O4590 | Premature separation of placenta, unspecified, unspecified trimester |
| O46009 | Antepartum hemorrhage with coagulation defect, unspecified, unspecified trimester |
| O46019 | Antepartum hemorrhage with afibrinogenemia, unspecified trimester |
| O46029 | Antepartum hemorrhage with disseminated intravascular coagulation, unspecified trimester |
| O46099 | Antepartum hemorrhage with other coagulation defect, unspecified trimester |
| O468X9 | Other antepartum hemorrhage, unspecified trimester |
| O4690 | Antepartum hemorrhage, unspecified, unspecified trimester |
| O88019 | Air embolism in pregnancy, unspecified trimester |
| O88119 | Amniotic fluid embolism in pregnancy, unspecified trimester |
| O88219 | Thromboembolism in pregnancy, unspecified trimester |
| O88319 | Pyemic and septic embolism in pregnancy, unspecified trimester |
| O88819 | Other embolism in pregnancy, unspecified trimester |
| O91019 | Infection of nipple associated with pregnancy, unspecified trimester |
| O91119 | Abscess of breast associated with pregnancy, unspecified trimester |
| O91219 | Nonpurulent mastitis associated with pregnancy, unspecified trimester |
| O92019 | Retracted nipple associated with pregnancy, unspecified trimester |
| O92119 | Cracked nipple associated with pregnancy, unspecified trimester |
| O94 | Sequelae of complication of pregnancy, childbirth, and the puerperium |
| O98019 | Tuberculosis complicating pregnancy, unspecified trimester |
| O98119 | Syphilis complicating pregnancy, unspecified trimester |
| O98219 | Gonorrhea complicating pregnancy, unspecified trimester |
| O98319 | Other infections with a predominantly sexual mode of transmission complicating pregnancy, unspecified trimester |
| O98419 | Viral hepatitis complicating pregnancy, unspecified trimester |
| O98519 | Other viral diseases complicating pregnancy, unspecified trimester |
| O98619 | Protozoal diseases complicating pregnancy, unspecified trimester |
| O98719 | Human immunodeficiency virus [HIV] disease complicating pregnancy, unspecified trimester |
| O98819 | Other maternal infectious and parasitic diseases complicating pregnancy, unspecified trimester |
| O98919 | Unspecified maternal infectious and parasitic disease complicating pregnancy, unspecified trimester |
| O99019 | Anemia complicating pregnancy, unspecified trimester |
| O99119 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, unspecified trimester |
| O99210 | Obesity complicating pregnancy, unspecified trimester |
| O99280 | Endocrine, nutritional and metabolic diseases complicating pregnancy, unspecified trimester |
| O99310 | Alcohol use complicating pregnancy, unspecified trimester |
| O99320 | Drug use complicating pregnancy, unspecified trimester |
| O99330 | Smoking (tobacco) complicating pregnancy, unspecified trimester |
| O99340 | Other mental disorders complicating pregnancy, unspecified trimester |
| O99350 | Diseases of the nervous system complicating pregnancy, unspecified trimester |
| O99419 | Diseases of the circulatory system complicating pregnancy, unspecified trimester |
| O99519 | Diseases of the respiratory system complicating pregnancy, unspecified trimester |
| O99619 | Diseases of the digestive system complicating pregnancy, unspecified trimester |
| O99719 | Diseases of the skin and subcutaneous tissue complicating pregnancy, unspecified trimester |
| O99840 | Bariatric surgery status complicating pregnancy, unspecified trimester |
| O9A119 | Malignant neoplasm complicating pregnancy, unspecified trimester |
| O9A219 | Injury, poisoning and certain other consequences of external causes complicating pregnancy, unspecified trimester |
| O9A319 | Physical abuse complicating pregnancy, unspecified trimester |
| O9A419 | Sexual abuse complicating pregnancy, unspecified trimester |
| O9A519 | Psychological abuse complicating pregnancy, unspecified trimester |
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