| O010 | Classical hydatidiform mole |
| O011 | Incomplete and partial hydatidiform mole |
| O019 | Hydatidiform mole, unspecified |
| O020 | Blighted ovum and nonhydatidiform mole |
| O0281 | Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy |
| O0289 | Other abnormal products of conception |
| O029 | Abnormal product of conception, unspecified |
| O0941 | Supervision of pregnancy with grand multiparity, first trimester |
| O0942 | Supervision of pregnancy with grand multiparity, second trimester |
| O0943 | Supervision of pregnancy with grand multiparity, third trimester |
| O131 | Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester |
| O132 | Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester |
| O133 | Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester |
| O2201 | Varicose veins of lower extremity in pregnancy, first trimester |
| O2202 | Varicose veins of lower extremity in pregnancy, second trimester |
| O2203 | Varicose veins of lower extremity in pregnancy, third trimester |
| O2211 | Genital varices in pregnancy, first trimester |
| O2212 | Genital varices in pregnancy, second trimester |
| O2213 | Genital varices in pregnancy, third trimester |
| O2221 | Superficial thrombophlebitis in pregnancy, first trimester |
| O2222 | Superficial thrombophlebitis in pregnancy, second trimester |
| O2223 | Superficial thrombophlebitis in pregnancy, third trimester |
| O2231 | Deep phlebothrombosis in pregnancy, first trimester |
| O2232 | Deep phlebothrombosis in pregnancy, second trimester |
| O2233 | Deep phlebothrombosis in pregnancy, third trimester |
| O2241 | Hemorrhoids in pregnancy, first trimester |
| O2242 | Hemorrhoids in pregnancy, second trimester |
| O2243 | Hemorrhoids in pregnancy, third trimester |
| O2251 | Cerebral venous thrombosis in pregnancy, first trimester |
| O2252 | Cerebral venous thrombosis in pregnancy, second trimester |
| O2253 | Cerebral venous thrombosis in pregnancy, third trimester |
| O228X1 | Other venous complications in pregnancy, first trimester |
| O228X2 | Other venous complications in pregnancy, second trimester |
| O228X3 | Other venous complications in pregnancy, third trimester |
| O2291 | Venous complication in pregnancy, unspecified, first trimester |
| O2292 | Venous complication in pregnancy, unspecified, second trimester |
| O2293 | Venous complication in pregnancy, unspecified, third trimester |
| O2621 | Pregnancy care for patient with recurrent pregnancy loss, first trimester |
| O2622 | Pregnancy care for patient with recurrent pregnancy loss, second trimester |
| O2623 | Pregnancy care for patient with recurrent pregnancy loss, third trimester |
| O2650 | Maternal hypotension syndrome, unspecified trimester |
| O2651 | Maternal hypotension syndrome, first trimester |
| O2652 | Maternal hypotension syndrome, second trimester |
| O2653 | Maternal hypotension syndrome, third trimester |
| O26841 | Uterine size-date discrepancy, first trimester |
| O26842 | Uterine size-date discrepancy, second trimester |
| O26843 | Uterine size-date discrepancy, third trimester |
| O26851 | Spotting complicating pregnancy, first trimester |
| O26852 | Spotting complicating pregnancy, second trimester |
| O26853 | Spotting complicating pregnancy, third trimester |
| O26872 | Cervical shortening, second trimester |
| O26873 | Cervical shortening, third trimester |
| O280 | Abnormal hematological finding on antenatal screening of mother |
| O281 | Abnormal biochemical finding on antenatal screening of mother |
| O282 | Abnormal cytological finding on antenatal screening of mother |
| O283 | Abnormal ultrasonic finding on antenatal screening of mother |
| O284 | Abnormal radiological finding on antenatal screening of mother |
| O285 | Abnormal chromosomal and genetic finding on antenatal screening of mother |
| O288 | Other abnormal findings on antenatal screening of mother |
| O289 | Unspecified abnormal findings on antenatal screening of mother |
| O30001 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30002 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30003 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30011 | Twin pregnancy, monochorionic/monoamniotic, first trimester |
| O30012 | Twin pregnancy, monochorionic/monoamniotic, second trimester |
| O30013 | Twin pregnancy, monochorionic/monoamniotic, third trimester |
| O30021 | Conjoined twin pregnancy, first trimester |
| O30022 | Conjoined twin pregnancy, second trimester |
| O30023 | Conjoined twin pregnancy, third trimester |
| O30031 | Twin pregnancy, monochorionic/diamniotic, first trimester |
| O30032 | Twin pregnancy, monochorionic/diamniotic, second trimester |
| O30033 | Twin pregnancy, monochorionic/diamniotic, third trimester |
| O30041 | Twin pregnancy, dichorionic/diamniotic, first trimester |
| O30042 | Twin pregnancy, dichorionic/diamniotic, second trimester |
| O30043 | Twin pregnancy, dichorionic/diamniotic, third trimester |
| O30091 | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester |
| O30092 | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30093 | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O30101 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30102 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30103 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30111 | Triplet pregnancy with two or more monochorionic fetuses, first trimester |
| O30112 | Triplet pregnancy with two or more monochorionic fetuses, second trimester |
| O30113 | Triplet pregnancy with two or more monochorionic fetuses, third trimester |
| O30121 | Triplet pregnancy with two or more monoamniotic fetuses, first trimester |
| O30122 | Triplet pregnancy with two or more monoamniotic fetuses, second trimester |
| O30123 | Triplet pregnancy with two or more monoamniotic fetuses, third trimester |
| O30191 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester |
| O30192 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30193 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O30201 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30202 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30203 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30211 | Quadruplet pregnancy with two or more monochorionic fetuses, first trimester |
| O30212 | Quadruplet pregnancy with two or more monochorionic fetuses, second trimester |
| O30213 | Quadruplet pregnancy with two or more monochorionic fetuses, third trimester |
| O30221 | Quadruplet pregnancy with two or more monoamniotic fetuses, first trimester |
| O30222 | Quadruplet pregnancy with two or more monoamniotic fetuses, second trimester |
| O30223 | Quadruplet pregnancy with two or more monoamniotic fetuses, third trimester |
| O30291 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester |
| O30292 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30293 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O30801 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, first trimester |
| O30802 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, second trimester |
| O30803 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, third trimester |
| O30811 | Other specified multiple gestation with two or more monochorionic fetuses, first trimester |
| O30812 | Other specified multiple gestation with two or more monochorionic fetuses, second trimester |
| O30813 | Other specified multiple gestation with two or more monochorionic fetuses, third trimester |
| O30821 | Other specified multiple gestation with two or more monoamniotic fetuses, first trimester |
| O30822 | Other specified multiple gestation with two or more monoamniotic fetuses, second trimester |
| O30823 | Other specified multiple gestation with two or more monoamniotic fetuses, third trimester |
| O30891 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, first trimester |
| O30892 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, second trimester |
| O30893 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, third trimester |
| O3091 | Multiple gestation, unspecified, first trimester |
| O3092 | Multiple gestation, unspecified, second trimester |
| O3093 | Multiple gestation, unspecified, third trimester |
| O3100x0 | Papyraceous fetus, unspecified trimester, not applicable or unspecified |
| O3100x1 | Papyraceous fetus, unspecified trimester, fetus 1 |
| O3100x2 | Papyraceous fetus, unspecified trimester, fetus 2 |
| O3100x3 | Papyraceous fetus, unspecified trimester, fetus 3 |
| O3100x4 | Papyraceous fetus, unspecified trimester, fetus 4 |
| O3100x5 | Papyraceous fetus, unspecified trimester, fetus 5 |
| O3100x9 | Papyraceous fetus, unspecified trimester, other fetus |
| O3101X0 | Papyraceous fetus, first trimester, not applicable or unspecified |
| O3101X1 | Papyraceous fetus, first trimester, fetus 1 |
| O3101X2 | Papyraceous fetus, first trimester, fetus 2 |
| O3101X3 | Papyraceous fetus, first trimester, fetus 3 |
| O3101X4 | Papyraceous fetus, first trimester, fetus 4 |
| O3101X5 | Papyraceous fetus, first trimester, fetus 5 |
| O3101X9 | Papyraceous fetus, first trimester, other fetus |
| O3102X0 | Papyraceous fetus, second trimester, not applicable or unspecified |
| O3102X1 | Papyraceous fetus, second trimester, fetus 1 |
| O3102X2 | Papyraceous fetus, second trimester, fetus 2 |
| O3102X3 | Papyraceous fetus, second trimester, fetus 3 |
| O3102X4 | Papyraceous fetus, second trimester, fetus 4 |
| O3102X5 | Papyraceous fetus, second trimester, fetus 5 |
| O3102X9 | Papyraceous fetus, second trimester, other fetus |
| O3103X0 | Papyraceous fetus, third trimester, not applicable or unspecified |
| O3103X1 | Papyraceous fetus, third trimester, fetus 1 |
| O3103X2 | Papyraceous fetus, third trimester, fetus 2 |
| O3103X3 | Papyraceous fetus, third trimester, fetus 3 |
| O3103X4 | Papyraceous fetus, third trimester, fetus 4 |
| O3103X5 | Papyraceous fetus, third trimester, fetus 5 |
| O3103X9 | Papyraceous fetus, third trimester, other fetus |
| O3111X0 | Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, not applicable or unspecified |
| O3111X1 | Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 1 |
| O3111X2 | Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 2 |
| O3111X3 | Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 3 |
| O3111X4 | Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 4 |
| O3111X5 | Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, fetus 5 |
| O3111X9 | Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester, other fetus |
| O3112X0 | Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, not applicable or unspecified |
| O3112X1 | Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 1 |
| O3112X2 | Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 2 |
| O3112X3 | Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 3 |
| O3112X4 | Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 4 |
| O3112X5 | Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, fetus 5 |
| O3112X9 | Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester, other fetus |
| O3113X0 | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, not applicable or unspecified |
| O3113X1 | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 1 |
| O3113X2 | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 2 |
| O3113X3 | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 3 |
| O3113X4 | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 4 |
| O3113X5 | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, fetus 5 |
| O3113X9 | Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester, other fetus |
| O3121X0 | Continuing pregnancy after intrauterine death of one fetus or more, first trimester, not applicable or unspecified |
| O3121X1 | Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 1 |
| O3121X2 | Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 2 |
| O3121X3 | Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 3 |
| O3121X4 | Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 4 |
| O3121X5 | Continuing pregnancy after intrauterine death of one fetus or more, first trimester, fetus 5 |
| O3121X9 | Continuing pregnancy after intrauterine death of one fetus or more, first trimester, other fetus |
| O3122X0 | Continuing pregnancy after intrauterine death of one fetus or more, second trimester, not applicable or unspecified |
| O3122X1 | Continuing pregnancy after intrauterine death of one fetus or more, second trimester, fetus 1 |
| O3122X2 | Continuing pregnancy after intrauterine death of one fetus or more, second trimester, fetus 2 |
| O3122X3 | Continuing pregnancy after intrauterine death of one fetus or more, second trimester, fetus 3 |
| O3122X4 | Continuing pregnancy after intrauterine death of one fetus or more, second trimester, fetus 4 |
| O3122X5 | Continuing pregnancy after intrauterine death of one fetus or more, second trimester, fetus 5 |
| O3122X9 | Continuing pregnancy after intrauterine death of one fetus or more, second trimester, other fetus |
| O3123X0 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, not applicable or unspecified |
| O3123X1 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 1 |
| O3123X2 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 2 |
| O3123X3 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 3 |
| O3123X4 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 4 |
| O3123X5 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, fetus 5 |
| O3123X9 | Continuing pregnancy after intrauterine death of one fetus or more, third trimester, other fetus |
| O3131X0 | Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, not applicable or unspecified |
| O3131X1 | Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, fetus 1 |
| O3131X2 | Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, fetus 2 |
| O3131X3 | Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, fetus 3 |
| O3131X4 | Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, fetus 4 |
| O3131X5 | Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, fetus 5 |
| O3131X9 | Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester, other fetus |
| O3132X0 | Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, not applicable or unspecified |
| O3132X1 | Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, fetus 1 |
| O3132X2 | Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, fetus 2 |
| O3132X3 | Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, fetus 3 |
| O3132X4 | Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, fetus 4 |
| O3132X5 | Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, fetus 5 |
| O3132X9 | Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester, other fetus |
| O3133X0 | Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, not applicable or unspecified |
| O3133X1 | Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 1 |
| O3133X2 | Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 2 |
| O3133X3 | Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 3 |
| O3133X4 | Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 4 |
| O3133X5 | Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, fetus 5 |
| O3133X9 | Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester, other fetus |
| O318X10 | Other complications specific to multiple gestation, first trimester, not applicable or unspecified |
| O318X11 | Other complications specific to multiple gestation, first trimester, fetus 1 |
| O318X12 | Other complications specific to multiple gestation, first trimester, fetus 2 |
| O318X13 | Other complications specific to multiple gestation, first trimester, fetus 3 |
| O318X14 | Other complications specific to multiple gestation, first trimester, fetus 4 |
| O318X15 | Other complications specific to multiple gestation, first trimester, fetus 5 |
| O318X19 | Other complications specific to multiple gestation, first trimester, other fetus |
| O318X20 | Other complications specific to multiple gestation, second trimester, not applicable or unspecified |
| O318X21 | Other complications specific to multiple gestation, second trimester, fetus 1 |
| O318X22 | Other complications specific to multiple gestation, second trimester, fetus 2 |
| O318X23 | Other complications specific to multiple gestation, second trimester, fetus 3 |
| O318X24 | Other complications specific to multiple gestation, second trimester, fetus 4 |
| O318X25 | Other complications specific to multiple gestation, second trimester, fetus 5 |
| O318X29 | Other complications specific to multiple gestation, second trimester, other fetus |
| O318X30 | Other complications specific to multiple gestation, third trimester, not applicable or unspecified |
| O318X31 | Other complications specific to multiple gestation, third trimester, fetus 1 |
| O318X32 | Other complications specific to multiple gestation, third trimester, fetus 2 |
| O318X33 | Other complications specific to multiple gestation, third trimester, fetus 3 |
| O318X34 | Other complications specific to multiple gestation, third trimester, fetus 4 |
| O318X35 | Other complications specific to multiple gestation, third trimester, fetus 5 |
| O318X39 | Other complications specific to multiple gestation, third trimester, other fetus |
| O320XX0 | Maternal care for unstable lie, not applicable or unspecified |
| O320XX1 | Maternal care for unstable lie, fetus 1 |
| O320XX2 | Maternal care for unstable lie, fetus 2 |
| O320XX3 | Maternal care for unstable lie, fetus 3 |
| O320XX4 | Maternal care for unstable lie, fetus 4 |
| O320XX5 | Maternal care for unstable lie, fetus 5 |
| O320XX9 | Maternal care for unstable lie, other fetus |
| O321XX0 | Maternal care for breech presentation, not applicable or unspecified |
| O321XX1 | Maternal care for breech presentation, fetus 1 |
| O321XX2 | Maternal care for breech presentation, fetus 2 |
| O321XX3 | Maternal care for breech presentation, fetus 3 |
| O321XX4 | Maternal care for breech presentation, fetus 4 |
| O321XX5 | Maternal care for breech presentation, fetus 5 |
| O321XX9 | Maternal care for breech presentation, other fetus |
| O322XX0 | Maternal care for transverse and oblique lie, not applicable or unspecified |
| O322XX1 | Maternal care for transverse and oblique lie, fetus 1 |
| O322XX2 | Maternal care for transverse and oblique lie, fetus 2 |
| O322XX3 | Maternal care for transverse and oblique lie, fetus 3 |
| O322XX4 | Maternal care for transverse and oblique lie, fetus 4 |
| O322XX5 | Maternal care for transverse and oblique lie, fetus 5 |
| O322XX9 | Maternal care for transverse and oblique lie, other fetus |
| O323XX0 | Maternal care for face, brow and chin presentation, not applicable or unspecified |
| O323XX1 | Maternal care for face, brow and chin presentation, fetus 1 |
| O323XX2 | Maternal care for face, brow and chin presentation, fetus 2 |
| O323XX3 | Maternal care for face, brow and chin presentation, fetus 3 |
| O323XX4 | Maternal care for face, brow and chin presentation, fetus 4 |
| O323XX5 | Maternal care for face, brow and chin presentation, fetus 5 |
| O323XX9 | Maternal care for face, brow and chin presentation, other fetus |
| O324XX0 | Maternal care for high head at term, not applicable or unspecified |
| O324XX1 | Maternal care for high head at term, fetus 1 |
| O324XX2 | Maternal care for high head at term, fetus 2 |
| O324XX3 | Maternal care for high head at term, fetus 3 |
| O324XX4 | Maternal care for high head at term, fetus 4 |
| O324XX5 | Maternal care for high head at term, fetus 5 |
| O324XX9 | Maternal care for high head at term, other fetus |
| O326XX0 | Maternal care for compound presentation, not applicable or unspecified |
| O326XX1 | Maternal care for compound presentation, fetus 1 |
| O326XX2 | Maternal care for compound presentation, fetus 2 |
| O326XX3 | Maternal care for compound presentation, fetus 3 |
| O326XX4 | Maternal care for compound presentation, fetus 4 |
| O326XX5 | Maternal care for compound presentation, fetus 5 |
| O326XX9 | Maternal care for compound presentation, other fetus |
| O328XX0 | Maternal care for other malpresentation of fetus, not applicable or unspecified |
| O328XX1 | Maternal care for other malpresentation of fetus, fetus 1 |
| O328XX2 | Maternal care for other malpresentation of fetus, fetus 2 |
| O328XX3 | Maternal care for other malpresentation of fetus, fetus 3 |
| O328XX4 | Maternal care for other malpresentation of fetus, fetus 4 |
| O328XX5 | Maternal care for other malpresentation of fetus, fetus 5 |
| O328XX9 | Maternal care for other malpresentation of fetus, other fetus |
| O329XX0 | Maternal care for malpresentation of fetus, unspecified, not applicable or unspecified |
| O329XX1 | Maternal care for malpresentation of fetus, unspecified, fetus 1 |
| O329XX2 | Maternal care for malpresentation of fetus, unspecified, fetus 2 |
| O329XX3 | Maternal care for malpresentation of fetus, unspecified, fetus 3 |
| O329XX4 | Maternal care for malpresentation of fetus, unspecified, fetus 4 |
| O329XX5 | Maternal care for malpresentation of fetus, unspecified, fetus 5 |
| O329XX9 | Maternal care for malpresentation of fetus, unspecified, other fetus |
| O331 | Maternal care for disproportion due to generally contracted pelvis |
| O332 | Maternal care for disproportion due to inlet contraction of pelvis |
| O333XX0 | Maternal care for disproportion due to outlet contraction of pelvis, not applicable or unspecified |
| O333XX1 | Maternal care for disproportion due to outlet contraction of pelvis, fetus 1 |
| O333XX2 | Maternal care for disproportion due to outlet contraction of pelvis, fetus 2 |
| O333XX3 | Maternal care for disproportion due to outlet contraction of pelvis, fetus 3 |
| O333XX4 | Maternal care for disproportion due to outlet contraction of pelvis, fetus 4 |
| O333XX5 | Maternal care for disproportion due to outlet contraction of pelvis, fetus 5 |
| O333XX9 | Maternal care for disproportion due to outlet contraction of pelvis, other fetus |
| O334XX0 | Maternal care for disproportion of mixed maternal and fetal origin, not applicable or unspecified |
| O334XX1 | Maternal care for disproportion of mixed maternal and fetal origin, fetus 1 |
| O334XX2 | Maternal care for disproportion of mixed maternal and fetal origin, fetus 2 |
| O334XX3 | Maternal care for disproportion of mixed maternal and fetal origin, fetus 3 |
| O334XX4 | Maternal care for disproportion of mixed maternal and fetal origin, fetus 4 |
| O334XX5 | Maternal care for disproportion of mixed maternal and fetal origin, fetus 5 |
| O334XX9 | Maternal care for disproportion of mixed maternal and fetal origin, other fetus |
| O335XX0 | Maternal care for disproportion due to unusually large fetus, not applicable or unspecified |
| O335XX1 | Maternal care for disproportion due to unusually large fetus, fetus 1 |
| O335XX2 | Maternal care for disproportion due to unusually large fetus, fetus 2 |
| O335XX3 | Maternal care for disproportion due to unusually large fetus, fetus 3 |
| O335XX4 | Maternal care for disproportion due to unusually large fetus, fetus 4 |
| O335XX5 | Maternal care for disproportion due to unusually large fetus, fetus 5 |
| O335XX9 | Maternal care for disproportion due to unusually large fetus, other fetus |
| O336XX0 | Maternal care for disproportion due to hydrocephalic fetus, not applicable or unspecified |
| O336XX1 | Maternal care for disproportion due to hydrocephalic fetus, fetus 1 |
| O336XX2 | Maternal care for disproportion due to hydrocephalic fetus, fetus 2 |
| O336XX3 | Maternal care for disproportion due to hydrocephalic fetus, fetus 3 |
| O336XX4 | Maternal care for disproportion due to hydrocephalic fetus, fetus 4 |
| O336XX5 | Maternal care for disproportion due to hydrocephalic fetus, fetus 5 |
| O336XX9 | Maternal care for disproportion due to hydrocephalic fetus, other fetus |
| O337 | Maternal care for disproportion due to other fetal deformities |
| O338 | Maternal care for disproportion of other origin |
| O339 | Maternal care for disproportion, unspecified |
| O3401 | Maternal care for unspecified congenital malformation of uterus, first trimester |
| O3402 | Maternal care for unspecified congenital malformation of uterus, second trimester |
| O3403 | Maternal care for unspecified congenital malformation of uterus, third trimester |
| O3411 | Maternal care for benign tumor of corpus uteri, first trimester |
| O3412 | Maternal care for benign tumor of corpus uteri, second trimester |
| O3413 | Maternal care for benign tumor of corpus uteri, third trimester |
| O3421 | Maternal care for scar from previous cesarean delivery |
| O3429 | Maternal care due to uterine scar from other previous surgery |
| O3431 | Maternal care for cervical incompetence, first trimester |
| O3432 | Maternal care for cervical incompetence, second trimester |
| O3433 | Maternal care for cervical incompetence, third trimester |
| O3441 | Maternal care for other abnormalities of cervix, first trimester |
| O3442 | Maternal care for other abnormalities of cervix, second trimester |
| O3443 | Maternal care for other abnormalities of cervix, third trimester |
| O34511 | Maternal care for incarceration of gravid uterus, first trimester |
| O34512 | Maternal care for incarceration of gravid uterus, second trimester |
| O34513 | Maternal care for incarceration of gravid uterus, third trimester |
| O34521 | Maternal care for prolapse of gravid uterus, first trimester |
| O34522 | Maternal care for prolapse of gravid uterus, second trimester |
| O34523 | Maternal care for prolapse of gravid uterus, third trimester |
| O34531 | Maternal care for retroversion of gravid uterus, first trimester |
| O34532 | Maternal care for retroversion of gravid uterus, second trimester |
| O34533 | Maternal care for retroversion of gravid uterus, third trimester |
| O34591 | Maternal care for other abnormalities of gravid uterus, first trimester |
| O34592 | Maternal care for other abnormalities of gravid uterus, second trimester |
| O34593 | Maternal care for other abnormalities of gravid uterus, third trimester |
| O3461 | Maternal care for abnormality of vagina, first trimester |
| O3462 | Maternal care for abnormality of vagina, second trimester |
| O3463 | Maternal care for abnormality of vagina, third trimester |
| O3471 | Maternal care for abnormality of vulva and perineum, first trimester |
| O3472 | Maternal care for abnormality of vulva and perineum, second trimester |
| O3473 | Maternal care for abnormality of vulva and perineum, third trimester |
| O3481 | Maternal care for other abnormalities of pelvic organs, first trimester |
| O3482 | Maternal care for other abnormalities of pelvic organs, second trimester |
| O3483 | Maternal care for other abnormalities of pelvic organs, third trimester |
| O3491 | Maternal care for abnormality of pelvic organ, unspecified, first trimester |
| O3492 | Maternal care for abnormality of pelvic organ, unspecified, second trimester |
| O3493 | Maternal care for abnormality of pelvic organ, unspecified, third trimester |
| O350XX0 | Maternal care for (suspected) central nervous system malformation in fetus, not applicable or unspecified |
| O350XX1 | Maternal care for (suspected) central nervous system malformation in fetus, fetus 1 |
| O350XX2 | Maternal care for (suspected) central nervous system malformation in fetus, fetus 2 |
| O350XX3 | Maternal care for (suspected) central nervous system malformation in fetus, fetus 3 |
| O350XX4 | Maternal care for (suspected) central nervous system malformation in fetus, fetus 4 |
| O350XX5 | Maternal care for (suspected) central nervous system malformation in fetus, fetus 5 |
| O350XX9 | Maternal care for (suspected) central nervous system malformation in fetus, other fetus |
| O351XX0 | Maternal care for (suspected) chromosomal abnormality in fetus, not applicable or unspecified |
| O351XX1 | Maternal care for (suspected) chromosomal abnormality in fetus, fetus 1 |
| O351XX2 | Maternal care for (suspected) chromosomal abnormality in fetus, fetus 2 |
| O351XX3 | Maternal care for (suspected) chromosomal abnormality in fetus, fetus 3 |
| O351XX4 | Maternal care for (suspected) chromosomal abnormality in fetus, fetus 4 |
| O351XX5 | Maternal care for (suspected) chromosomal abnormality in fetus, fetus 5 |
| O351XX9 | Maternal care for (suspected) chromosomal abnormality in fetus, other fetus |
| O352XX0 | Maternal care for (suspected) hereditary disease in fetus, not applicable or unspecified |
| O352XX1 | Maternal care for (suspected) hereditary disease in fetus, fetus 1 |
| O352XX2 | Maternal care for (suspected) hereditary disease in fetus, fetus 2 |
| O352XX3 | Maternal care for (suspected) hereditary disease in fetus, fetus 3 |
| O352XX4 | Maternal care for (suspected) hereditary disease in fetus, fetus 4 |
| O352XX5 | Maternal care for (suspected) hereditary disease in fetus, fetus 5 |
| O352XX9 | Maternal care for (suspected) hereditary disease in fetus, other fetus |
| O353XX0 | Maternal care for (suspected) damage to fetus from viral disease in mother, not applicable or unspecified |
| O353XX1 | Maternal care for (suspected) damage to fetus from viral disease in mother, fetus 1 |
| O353XX2 | Maternal care for (suspected) damage to fetus from viral disease in mother, fetus 2 |
| O353XX3 | Maternal care for (suspected) damage to fetus from viral disease in mother, fetus 3 |
| O353XX4 | Maternal care for (suspected) damage to fetus from viral disease in mother, fetus 4 |
| O353XX5 | Maternal care for (suspected) damage to fetus from viral disease in mother, fetus 5 |
| O353XX9 | Maternal care for (suspected) damage to fetus from viral disease in mother, other fetus |
| O354XX0 | Maternal care for (suspected) damage to fetus from alcohol, not applicable or unspecified |
| O354XX1 | Maternal care for (suspected) damage to fetus from alcohol, fetus 1 |
| O354XX2 | Maternal care for (suspected) damage to fetus from alcohol, fetus 2 |
| O354XX3 | Maternal care for (suspected) damage to fetus from alcohol, fetus 3 |
| O354XX4 | Maternal care for (suspected) damage to fetus from alcohol, fetus 4 |
| O354XX5 | Maternal care for (suspected) damage to fetus from alcohol, fetus 5 |
| O354XX9 | Maternal care for (suspected) damage to fetus from alcohol, other fetus |
| O355XX0 | Maternal care for (suspected) damage to fetus by drugs, not applicable or unspecified |
| O355XX1 | Maternal care for (suspected) damage to fetus by drugs, fetus 1 |
| O355XX2 | Maternal care for (suspected) damage to fetus by drugs, fetus 2 |
| O355XX3 | Maternal care for (suspected) damage to fetus by drugs, fetus 3 |
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