| O2650 | Maternal hypotension syndrome, unspecified trimester |
| O2651 | Maternal hypotension syndrome, first trimester |
| O2652 | Maternal hypotension syndrome, second trimester |
| O2653 | Maternal hypotension syndrome, third trimester |
| O26611 | Liver and biliary tract disorders in pregnancy, first trimester |
| O26612 | Liver and biliary tract disorders in pregnancy, second trimester |
| O26613 | Liver and biliary tract disorders in pregnancy, third trimester |
| O26619 | Liver and biliary tract disorders in pregnancy, unspecified trimester |
| O2662 | Liver and biliary tract disorders in childbirth |
| O2663 | Liver and biliary tract disorders in the puerperium |
| O26711 | Subluxation of symphysis (pubis) in pregnancy, first trimester |
| O26712 | Subluxation of symphysis (pubis) in pregnancy, second trimester |
| O26713 | Subluxation of symphysis (pubis) in pregnancy, third trimester |
| O26719 | Subluxation of symphysis (pubis) in pregnancy, unspecified trimester |
| O2672 | Subluxation of symphysis (pubis) in childbirth |
| O2673 | Subluxation of symphysis (pubis) in the puerperium |
| O26811 | Pregnancy related exhaustion and fatigue, first trimester |
| O26812 | Pregnancy related exhaustion and fatigue, second trimester |
| O26813 | Pregnancy related exhaustion and fatigue, third trimester |
| O26819 | Pregnancy related exhaustion and fatigue, unspecified trimester |
| O26821 | Pregnancy related peripheral neuritis, first trimester |
| O26822 | Pregnancy related peripheral neuritis, second trimester |
| O26823 | Pregnancy related peripheral neuritis, third trimester |
| O26829 | Pregnancy related peripheral neuritis, unspecified trimester |
| O26831 | Pregnancy related renal disease, first trimester |
| O26832 | Pregnancy related renal disease, second trimester |
| O26833 | Pregnancy related renal disease, third trimester |
| O26839 | Pregnancy related renal disease, unspecified trimester |
| O26841 | Uterine size-date discrepancy, first trimester |
| O26842 | Uterine size-date discrepancy, second trimester |
| O26843 | Uterine size-date discrepancy, third trimester |
| O26849 | Uterine size-date discrepancy, unspecified trimester |
| O26851 | Spotting complicating pregnancy, first trimester |
| O26852 | Spotting complicating pregnancy, second trimester |
| O26853 | Spotting complicating pregnancy, third trimester |
| O26859 | Spotting complicating pregnancy, unspecified trimester |
| O2686 | Pruritic urticarial papules and plaques of pregnancy (PUPPP) |
| O26872 | Cervical shortening, second trimester |
| O26873 | Cervical shortening, third trimester |
| O26879 | Cervical shortening, unspecified trimester |
| O26891 | Other specified pregnancy related conditions, first trimester |
| O26892 | Other specified pregnancy related conditions, second trimester |
| O26893 | Other specified pregnancy related conditions, third trimester |
| O26899 | Other specified pregnancy related conditions, unspecified trimester |
| O2690 | Pregnancy related conditions, unspecified, unspecified trimester |
| O2691 | Pregnancy related conditions, unspecified, first trimester |
| O2692 | Pregnancy related conditions, unspecified, second trimester |
| O2693 | Pregnancy related conditions, unspecified, 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 |
| O29011 | Aspiration pneumonitis due to anesthesia during pregnancy, first trimester |
| O29012 | Aspiration pneumonitis due to anesthesia during pregnancy, second trimester |
| O29013 | Aspiration pneumonitis due to anesthesia during pregnancy, third trimester |
| O29019 | Aspiration pneumonitis due to anesthesia during pregnancy, unspecified trimester |
| O29021 | Pressure collapse of lung due to anesthesia during pregnancy, first trimester |
| O29022 | Pressure collapse of lung due to anesthesia during pregnancy, second trimester |
| O29023 | Pressure collapse of lung due to anesthesia during pregnancy, third trimester |
| O29029 | Pressure collapse of lung due to anesthesia during pregnancy, unspecified trimester |
| O29091 | Other pulmonary complications of anesthesia during pregnancy, first trimester |
| O29092 | Other pulmonary complications of anesthesia during pregnancy, second trimester |
| O29093 | Other pulmonary complications of anesthesia during pregnancy, third trimester |
| O29099 | Other pulmonary complications of anesthesia during pregnancy, unspecified trimester |
| O29111 | Cardiac arrest due to anesthesia during pregnancy, first trimester |
| O29112 | Cardiac arrest due to anesthesia during pregnancy, second trimester |
| O29113 | Cardiac arrest due to anesthesia during pregnancy, third trimester |
| O29119 | Cardiac arrest due to anesthesia during pregnancy, unspecified trimester |
| O29121 | Cardiac failure due to anesthesia during pregnancy, first trimester |
| O29122 | Cardiac failure due to anesthesia during pregnancy, second trimester |
| O29123 | Cardiac failure due to anesthesia during pregnancy, third trimester |
| O29129 | Cardiac failure due to anesthesia during pregnancy, unspecified trimester |
| O29191 | Other cardiac complications of anesthesia during pregnancy, first trimester |
| O29192 | Other cardiac complications of anesthesia during pregnancy, second trimester |
| O29193 | Other cardiac complications of anesthesia during pregnancy, third trimester |
| O29199 | Other cardiac complications of anesthesia during pregnancy, unspecified trimester |
| O29211 | Cerebral anoxia due to anesthesia during pregnancy, first trimester |
| O29212 | Cerebral anoxia due to anesthesia during pregnancy, second trimester |
| O29213 | Cerebral anoxia due to anesthesia during pregnancy, third trimester |
| O29219 | Cerebral anoxia due to anesthesia during pregnancy, unspecified trimester |
| O29291 | Other central nervous system complications of anesthesia during pregnancy, first trimester |
| O29292 | Other central nervous system complications of anesthesia during pregnancy, second trimester |
| O29293 | Other central nervous system complications of anesthesia during pregnancy, third trimester |
| O29299 | Other central nervous system complications of anesthesia during pregnancy, unspecified trimester |
| O293X1 | Toxic reaction to local anesthesia during pregnancy, first trimester |
| O293X2 | Toxic reaction to local anesthesia during pregnancy, second trimester |
| O293X3 | Toxic reaction to local anesthesia during pregnancy, third trimester |
| O293X9 | Toxic reaction to local anesthesia during pregnancy, unspecified trimester |
| O2940 | Spinal and epidural anesthesia induced headache during pregnancy, unspecified trimester |
| O2941 | Spinal and epidural anesthesia induced headache during pregnancy, first trimester |
| O2942 | Spinal and epidural anesthesia induced headache during pregnancy, second trimester |
| O2943 | Spinal and epidural anesthesia induced headache during pregnancy, third trimester |
| O295X1 | Other complications of spinal and epidural anesthesia during pregnancy, first trimester |
| O295X2 | Other complications of spinal and epidural anesthesia during pregnancy, second trimester |
| O295X3 | Other complications of spinal and epidural anesthesia during pregnancy, third trimester |
| O295X9 | Other complications of spinal and epidural anesthesia during pregnancy, unspecified trimester |
| O2960 | Failed or difficult intubation for anesthesia during pregnancy, unspecified trimester |
| O2961 | Failed or difficult intubation for anesthesia during pregnancy, first trimester |
| O2962 | Failed or difficult intubation for anesthesia during pregnancy, second trimester |
| O2963 | Failed or difficult intubation for anesthesia during pregnancy, third trimester |
| O298X1 | Other complications of anesthesia during pregnancy, first trimester |
| O298X2 | Other complications of anesthesia during pregnancy, second trimester |
| O298X3 | Other complications of anesthesia during pregnancy, third trimester |
| O298X9 | Other complications of anesthesia during pregnancy, unspecified trimester |
| O2990 | Unspecified complication of anesthesia during pregnancy, unspecified trimester |
| O2991 | Unspecified complication of anesthesia during pregnancy, first trimester |
| O2992 | Unspecified complication of anesthesia during pregnancy, second trimester |
| O2993 | Unspecified complication of anesthesia during pregnancy, third trimester |
| 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 |
| O30009 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester |
| O30011 | Twin pregnancy, monochorionic/monoamniotic, first trimester |
| O30012 | Twin pregnancy, monochorionic/monoamniotic, second trimester |
| O30013 | Twin pregnancy, monochorionic/monoamniotic, third trimester |
| O30019 | Twin pregnancy, monochorionic/monoamniotic, unspecified trimester |
| O30021 | Conjoined twin pregnancy, first trimester |
| O30022 | Conjoined twin pregnancy, second trimester |
| O30023 | Conjoined twin pregnancy, third trimester |
| O30029 | Conjoined twin pregnancy, unspecified trimester |
| O30031 | Twin pregnancy, monochorionic/diamniotic, first trimester |
| O30032 | Twin pregnancy, monochorionic/diamniotic, second trimester |
| O30033 | Twin pregnancy, monochorionic/diamniotic, third trimester |
| O30039 | Twin pregnancy, monochorionic/diamniotic, unspecified trimester |
| O30041 | Twin pregnancy, dichorionic/diamniotic, first trimester |
| O30042 | Twin pregnancy, dichorionic/diamniotic, second trimester |
| O30043 | Twin pregnancy, dichorionic/diamniotic, third trimester |
| O30049 | Twin pregnancy, dichorionic/diamniotic, unspecified 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 |
| O30099 | Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified 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 |
| O30109 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified 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 |
| O30119 | Triplet pregnancy with two or more monochorionic fetuses, unspecified 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 |
| O30129 | Triplet pregnancy with two or more monoamniotic fetuses, unspecified trimester |
| O30131 | Triplet pregnancy, trichorionic/triamniotic, first trimester |
| O30132 | Triplet pregnancy, trichorionic/triamniotic, second trimester |
| O30133 | Triplet pregnancy, trichorionic/triamniotic, third trimester |
| O30139 | Triplet pregnancy, trichorionic/triamniotic, unspecified 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 |
| O30199 | Triplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified 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 |
| O30209 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified 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 |
| O30219 | Quadruplet pregnancy with two or more monochorionic fetuses, unspecified 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 |
| O30229 | Quadruplet pregnancy with two or more monoamniotic fetuses, unspecified trimester |
| O30231 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, first trimester |
| O30232 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, second trimester |
| O30233 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, third trimester |
| O30239 | Quadruplet pregnancy, quadrachorionic/quadra-amniotic, unspecified 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 |
| O30299 | Quadruplet pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified 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 |
| O30809 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, unspecified 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 |
| O30819 | Other specified multiple gestation with two or more monochorionic fetuses, unspecified 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 |
| O30829 | Other specified multiple gestation with two or more monoamniotic fetuses, unspecified trimester |
| O30831 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, first trimester |
| O30832 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, second trimester |
| O30833 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, third trimester |
| O30839 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, unspecified 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 |
| O30899 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, unspecified trimester |
| O3090 | Multiple gestation, unspecified, unspecified 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| O330 | Maternal care for disproportion due to deformity of maternal pelvic bones |
| 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 |
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