| O2332 | Infections of other parts of urinary tract in pregnancy, second trimester |
| O2333 | Infections of other parts of urinary tract in pregnancy, third trimester |
| O2340 | Unspecified infection of urinary tract in pregnancy, unspecified trimester |
| O2341 | Unspecified infection of urinary tract in pregnancy, first trimester |
| O2342 | Unspecified infection of urinary tract in pregnancy, second trimester |
| O2343 | Unspecified infection of urinary tract in pregnancy, third trimester |
| O23511 | Infections of cervix in pregnancy, first trimester |
| O23512 | Infections of cervix in pregnancy, second trimester |
| O23513 | Infections of cervix in pregnancy, third trimester |
| O23519 | Infections of cervix in pregnancy, unspecified trimester |
| O23521 | Salpingo-oophoritis in pregnancy, first trimester |
| O23522 | Salpingo-oophoritis in pregnancy, second trimester |
| O23523 | Salpingo-oophoritis in pregnancy, third trimester |
| O23529 | Salpingo-oophoritis in pregnancy, unspecified trimester |
| O23591 | Infection of other part of genital tract in pregnancy, first trimester |
| O23592 | Infection of other part of genital tract in pregnancy, second trimester |
| O23593 | Infection of other part of genital tract in pregnancy, third trimester |
| O23599 | Infection of other part of genital tract in pregnancy, unspecified trimester |
| O2390 | Unspecified genitourinary tract infection in pregnancy, unspecified trimester |
| O2391 | Unspecified genitourinary tract infection in pregnancy, first trimester |
| O2392 | Unspecified genitourinary tract infection in pregnancy, second trimester |
| O2393 | Unspecified genitourinary tract infection in pregnancy, third trimester |
| O24011 | Pre-existing diabetes mellitus, type 1, in pregnancy, first trimester |
| O24012 | Pre-existing diabetes mellitus, type 1, in pregnancy, second trimester |
| O24013 | Pre-existing diabetes mellitus, type 1, in pregnancy, third trimester |
| O24111 | Pre-existing diabetes mellitus, type 2, in pregnancy, first trimester |
| O24112 | Pre-existing diabetes mellitus, type 2, in pregnancy, second trimester |
| O24113 | Pre-existing diabetes mellitus, type 2, in pregnancy, third trimester |
| O24311 | Unspecified pre-existing diabetes mellitus in pregnancy, first trimester |
| O24312 | Unspecified pre-existing diabetes mellitus in pregnancy, second trimester |
| O24313 | Unspecified pre-existing diabetes mellitus in pregnancy, third trimester |
| O24410 | Gestational diabetes mellitus in pregnancy, diet controlled |
| O24414 | Gestational diabetes mellitus in pregnancy, insulin controlled |
| O24419 | Gestational diabetes mellitus in pregnancy, unspecified control |
| O24811 | Other pre-existing diabetes mellitus in pregnancy, first trimester |
| O24812 | Other pre-existing diabetes mellitus in pregnancy, second trimester |
| O24813 | Other pre-existing diabetes mellitus in pregnancy, third trimester |
| O24911 | Unspecified diabetes mellitus in pregnancy, first trimester |
| O24912 | Unspecified diabetes mellitus in pregnancy, second trimester |
| O24913 | Unspecified diabetes mellitus in pregnancy, third trimester |
| O2511 | Malnutrition in pregnancy, first trimester |
| O2512 | Malnutrition in pregnancy, second trimester |
| O2513 | Malnutrition in pregnancy, third trimester |
| O2600 | Excessive weight gain in pregnancy, unspecified trimester |
| O2601 | Excessive weight gain in pregnancy, first trimester |
| O2602 | Excessive weight gain in pregnancy, second trimester |
| O2603 | Excessive weight gain in pregnancy, third trimester |
| O2610 | Low weight gain in pregnancy, unspecified trimester |
| O2611 | Low weight gain in pregnancy, first trimester |
| O2612 | Low weight gain in pregnancy, second trimester |
| O2613 | Low weight gain in pregnancy, third trimester |
| O2630 | Retained intrauterine contraceptive device in pregnancy, unspecified trimester |
| O2631 | Retained intrauterine contraceptive device in pregnancy, first trimester |
| O2632 | Retained intrauterine contraceptive device in pregnancy, second trimester |
| O2633 | Retained intrauterine contraceptive device in pregnancy, third trimester |
| O2640 | Herpes gestationis, unspecified trimester |
| O2641 | Herpes gestationis, first trimester |
| O2642 | Herpes gestationis, second trimester |
| O2643 | Herpes gestationis, 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 |
| 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 |
| 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 |
| 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 |
| O2686 | Pruritic urticarial papules and plaques of pregnancy (PUPPP) |
| 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 |
| O2691 | Pregnancy related conditions, unspecified, first trimester |
| O2692 | Pregnancy related conditions, unspecified, second trimester |
| O2693 | Pregnancy related conditions, unspecified, third trimester |
| 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 |
| O330 | Maternal care for disproportion due to deformity of maternal pelvic bones |
| O45001 | Premature separation of placenta with coagulation defect, unspecified, first trimester |
| O45002 | Premature separation of placenta with coagulation defect, unspecified, second trimester |
| O45003 | Premature separation of placenta with coagulation defect, unspecified, third trimester |
| O45009 | Premature separation of placenta with coagulation defect, unspecified, unspecified trimester |
| O45011 | Premature separation of placenta with afibrinogenemia, first trimester |
| O45012 | Premature separation of placenta with afibrinogenemia, second trimester |
| O45013 | Premature separation of placenta with afibrinogenemia, third trimester |
| O45019 | Premature separation of placenta with afibrinogenemia, unspecified trimester |
| O45021 | Premature separation of placenta with disseminated intravascular coagulation, first trimester |
| O45022 | Premature separation of placenta with disseminated intravascular coagulation, second trimester |
| O45023 | Premature separation of placenta with disseminated intravascular coagulation, third trimester |
| O45029 | Premature separation of placenta with disseminated intravascular coagulation, unspecified trimester |
| O45091 | Premature separation of placenta with other coagulation defect, first trimester |
| O45092 | Premature separation of placenta with other coagulation defect, second trimester |
| O45093 | Premature separation of placenta with other coagulation defect, third trimester |
| O45099 | Premature separation of placenta with other coagulation defect, unspecified trimester |
| O46001 | Antepartum hemorrhage with coagulation defect, unspecified, first trimester |
| O46002 | Antepartum hemorrhage with coagulation defect, unspecified, second trimester |
| O46003 | Antepartum hemorrhage with coagulation defect, unspecified, third trimester |
| O46009 | Antepartum hemorrhage with coagulation defect, unspecified, unspecified trimester |
| O46011 | Antepartum hemorrhage with afibrinogenemia, first trimester |
| O46012 | Antepartum hemorrhage with afibrinogenemia, second trimester |
| O46013 | Antepartum hemorrhage with afibrinogenemia, third trimester |
| O46019 | Antepartum hemorrhage with afibrinogenemia, unspecified trimester |
| O46021 | Antepartum hemorrhage with disseminated intravascular coagulation, first trimester |
| O46022 | Antepartum hemorrhage with disseminated intravascular coagulation, second trimester |
| O46023 | Antepartum hemorrhage with disseminated intravascular coagulation, third trimester |
| O46029 | Antepartum hemorrhage with disseminated intravascular coagulation, unspecified trimester |
| O46091 | Antepartum hemorrhage with other coagulation defect, first trimester |
| O46092 | Antepartum hemorrhage with other coagulation defect, second trimester |
| O46093 | Antepartum hemorrhage with other coagulation defect, third trimester |
| O46099 | Antepartum hemorrhage with other coagulation defect, unspecified trimester |
| O98011 | Tuberculosis complicating pregnancy, first trimester |
| O98012 | Tuberculosis complicating pregnancy, second trimester |
| O98013 | Tuberculosis complicating pregnancy, third trimester |
| O98111 | Syphilis complicating pregnancy, first trimester |
| O98112 | Syphilis complicating pregnancy, second trimester |
| O98113 | Syphilis complicating pregnancy, third trimester |
| O98211 | Gonorrhea complicating pregnancy, first trimester |
| O98212 | Gonorrhea complicating pregnancy, second trimester |
| O98213 | Gonorrhea complicating pregnancy, third trimester |
| O98311 | Other infections with a predominantly sexual mode of transmission complicating pregnancy, first trimester |
| O98312 | Other infections with a predominantly sexual mode of transmission complicating pregnancy, second trimester |
| O98313 | Other infections with a predominantly sexual mode of transmission complicating pregnancy, third trimester |
| O98411 | Viral hepatitis complicating pregnancy, first trimester |
| O98412 | Viral hepatitis complicating pregnancy, second trimester |
| O98413 | Viral hepatitis complicating pregnancy, third trimester |
| O98511 | Other viral diseases complicating pregnancy, first trimester |
| O98512 | Other viral diseases complicating pregnancy, second trimester |
| O98513 | Other viral diseases complicating pregnancy, third trimester |
| O98611 | Protozoal diseases complicating pregnancy, first trimester |
| O98612 | Protozoal diseases complicating pregnancy, second trimester |
| O98613 | Protozoal diseases complicating pregnancy, third trimester |
| O98711 | Human immunodeficiency virus [HIV] disease complicating pregnancy, first trimester |
| O98712 | Human immunodeficiency virus [HIV] disease complicating pregnancy, second trimester |
| O98713 | Human immunodeficiency virus [HIV] disease complicating pregnancy, third trimester |
| O98811 | Other maternal infectious and parasitic diseases complicating pregnancy, first trimester |
| O98812 | Other maternal infectious and parasitic diseases complicating pregnancy, second trimester |
| O98813 | Other maternal infectious and parasitic diseases complicating pregnancy, third trimester |
| O98911 | Unspecified maternal infectious and parasitic disease complicating pregnancy, first trimester |
| O98912 | Unspecified maternal infectious and parasitic disease complicating pregnancy, second trimester |
| O98913 | Unspecified maternal infectious and parasitic disease complicating pregnancy, third trimester |
| O99011 | Anemia complicating pregnancy, first trimester |
| O99012 | Anemia complicating pregnancy, second trimester |
| O99013 | Anemia complicating pregnancy, third trimester |
| O99281 | Endocrine, nutritional and metabolic diseases complicating pregnancy, first trimester |
| O99282 | Endocrine, nutritional and metabolic diseases complicating pregnancy, second trimester |
| O99283 | Endocrine, nutritional and metabolic diseases complicating pregnancy, third trimester |
| O99311 | Alcohol use complicating pregnancy, first trimester |
| O99312 | Alcohol use complicating pregnancy, second trimester |
| O99313 | Alcohol use complicating pregnancy, third trimester |
| O99321 | Drug use complicating pregnancy, first trimester |
| O99322 | Drug use complicating pregnancy, second trimester |
| O99323 | Drug use complicating pregnancy, third trimester |
| O99341 | Other mental disorders complicating pregnancy, first trimester |
| O99342 | Other mental disorders complicating pregnancy, second trimester |
| O99343 | Other mental disorders complicating pregnancy, third trimester |
| O99350 | Diseases of the nervous system complicating pregnancy, unspecified trimester |
| O99351 | Diseases of the nervous system complicating pregnancy, first trimester |
| O99352 | Diseases of the nervous system complicating pregnancy, second trimester |
| O99353 | Diseases of the nervous system complicating pregnancy, third trimester |
| O99411 | Diseases of the circulatory system complicating pregnancy, first trimester |
| O99412 | Diseases of the circulatory system complicating pregnancy, second trimester |
| O99413 | Diseases of the circulatory system complicating pregnancy, third trimester |
| O99511 | Diseases of the respiratory system complicating pregnancy, first trimester |
| O99512 | Diseases of the respiratory system complicating pregnancy, second trimester |
| O99513 | Diseases of the respiratory system complicating pregnancy, third trimester |
| O99611 | Diseases of the digestive system complicating pregnancy, first trimester |
| O99612 | Diseases of the digestive system complicating pregnancy, second trimester |
| O99613 | Diseases of the digestive system complicating pregnancy, third trimester |
| O99711 | Diseases of the skin and subcutaneous tissue complicating pregnancy, first trimester |
| O99712 | Diseases of the skin and subcutaneous tissue complicating pregnancy, second trimester |
| O99713 | Diseases of the skin and subcutaneous tissue complicating pregnancy, third trimester |
| O99810 | Abnormal glucose complicating pregnancy |
| O99820 | Streptococcus B carrier state complicating pregnancy |
| O99830 | Other infection carrier state complicating pregnancy |
| O9989 | Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium |
| O9A111 | Malignant neoplasm complicating pregnancy, first trimester |
| O9A112 | Malignant neoplasm complicating pregnancy, second trimester |
| O9A113 | Malignant neoplasm complicating pregnancy, third trimester |
| O9A211 | Injury, poisoning and certain other consequences of external causes complicating pregnancy, first trimester |
| O9A212 | Injury, poisoning and certain other consequences of external causes complicating pregnancy, second trimester |
| O9A213 | Injury, poisoning and certain other consequences of external causes complicating pregnancy, third trimester |
| O9A311 | Physical abuse complicating pregnancy, first trimester |
| O9A312 | Physical abuse complicating pregnancy, second trimester |
| O9A313 | Physical abuse complicating pregnancy, third trimester |
| O9A411 | Sexual abuse complicating pregnancy, first trimester |
| O9A412 | Sexual abuse complicating pregnancy, second trimester |
| O9A413 | Sexual abuse complicating pregnancy, third trimester |
| O9A511 | Psychological abuse complicating pregnancy, first trimester |
| O9A512 | Psychological abuse complicating pregnancy, second trimester |
| O9A513 | Psychological abuse complicating pregnancy, third trimester |
| 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 |
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