| CIEL | 115491 | Multiple gestation | Non-standard |
| CIM10 | O30 | Multiple gestation | Non-standard |
| CIM10 | O30.8 | Other multiple gestation | Non-standard |
| CIM10 | O30.9 | Multiple gestation, unspecified | Non-standard |
| ICD10 | O30 | Multiple gestation | Non-standard |
| ICD10 | O30.8 | Other multiple gestation | Non-standard |
| ICD10 | O30.9 | Multiple gestation, unspecified | Non-standard |
| ICD10CM | O30 | Multiple gestation | Non-standard |
| ICD10CM | O30.8 | Other specified multiple gestation | Non-standard |
| ICD10CM | O30.80 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs | Non-standard |
| ICD10CM | O30.801 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, first trimester | Non-standard |
| ICD10CM | O30.802 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, second trimester | Non-standard |
| ICD10CM | O30.803 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, third trimester | Non-standard |
| ICD10CM | O30.809 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester | Non-standard |
| ICD10CM | O30.81 | Other specified multiple gestation with two or more monochorionic fetuses | Non-standard |
| ICD10CM | O30.811 | Other specified multiple gestation with two or more monochorionic fetuses, first trimester | Non-standard |
| ICD10CM | O30.812 | Other specified multiple gestation with two or more monochorionic fetuses, second trimester | Non-standard |
| ICD10CM | O30.813 | Other specified multiple gestation with two or more monochorionic fetuses, third trimester | Non-standard |
| ICD10CM | O30.819 | Other specified multiple gestation with two or more monochorionic fetuses, unspecified trimester | Non-standard |
| ICD10CM | O30.82 | Other specified multiple gestation with two or more monoamniotic fetuses | Non-standard |
| ICD10CM | O30.821 | Other specified multiple gestation with two or more monoamniotic fetuses, first trimester | Non-standard |
| ICD10CM | O30.822 | Other specified multiple gestation with two or more monoamniotic fetuses, second trimester | Non-standard |
| ICD10CM | O30.823 | Other specified multiple gestation with two or more monoamniotic fetuses, third trimester | Non-standard |
| ICD10CM | O30.829 | Other specified multiple gestation with two or more monoamniotic fetuses, unspecified trimester | Non-standard |
| ICD10CM | O30.83 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses | Non-standard |
| ICD10CM | O30.831 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, first trimester | Non-standard |
| ICD10CM | O30.832 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, second trimester | Non-standard |
| ICD10CM | O30.833 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, third trimester | Non-standard |
| ICD10CM | O30.839 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses, unspecified trimester | Non-standard |
| ICD10CM | O30.89 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs | Non-standard |
| ICD10CM | O30.891 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, first trimester | Non-standard |
| ICD10CM | O30.892 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, second trimester | Non-standard |
| ICD10CM | O30.893 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, third trimester | Non-standard |
| ICD10CM | O30.899 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs, unspecified trimester | Non-standard |
| ICD10CM | O30.9 | Multiple gestation, unspecified | Non-standard |
| ICD10CM | O30.90 | Multiple gestation, unspecified, unspecified trimester | Non-standard |
| ICD10CM | O30.91 | Multiple gestation, unspecified, first trimester | Non-standard |
| ICD10CM | O30.92 | Multiple gestation, unspecified, second trimester | Non-standard |
| ICD10CM | O30.93 | Multiple gestation, unspecified, third trimester | Non-standard |
| ICD10CN | O30 | Multiple gestation | Non-standard |
| ICD10CN | O30.8 | Other multiple gestation | Non-standard |
| ICD10CN | O30.800 | Other multiple gestation | Non-standard |
| ICD10CN | O30.801 | Five pregnancies (machine translation) | Non-standard |
| ICD10CN | O30.9 | Multiple gestation, unspecified | Non-standard |
| ICD10CN | O30.900 | Multiple gestation, unspecified | Non-standard |
| ICD10GM | O30 | Multiple gestation | Non-standard |
| ICD10GM | O30.8 | Other multiple gestation | Non-standard |
| ICD10GM | O30.9 | Multiple gestation, unspecified | Non-standard |
| ICD9CM | 651 | Multiple gestation | Non-standard |
| ICD9CM | 651.7 | Multiple gestation following (elective) fetal reduction | Non-standard |
| ICD9CM | 651.70 | Multiple gestation following (elective) fetal reduction, unspecified as to episode of care or not applicable | Non-standard |
| ICD9CM | 651.71 | Multiple gestation following (elective) fetal reduction,delivered, with or without mention of antepartum condition | Non-standard |
| ICD9CM | 651.73 | Multiple gestation following (elective) fetal reduction, antepartum condition or complication | Non-standard |
| ICD9CM | 651.8 | Other specified multiple gestation | Non-standard |
| ICD9CM | 651.80 | Other specified multiple gestation, unspecified as to episode of care or not applicable | Non-standard |
| ICD9CM | 651.81 | Other specified multiple gestation, delivered, with or without mention of antepartum condition | Non-standard |
| ICD9CM | 651.83 | Other specified multiple gestation, antepartum condition or complication | Non-standard |
| ICD9CM | 651.9 | Unspecified multiple gestation | Non-standard |
| ICD9CM | 651.90 | Unspecified multiple gestation, unspecified as to episode of care or not applicable | Non-standard |
| ICD9CM | 651.91 | Unspecified multiple gestation, delivered, with or without mention of antepartum condition | Non-standard |
| ICD9CM | 651.93 | Unspecified multiple gestation, antepartum condition or complication | Non-standard |
| ICD9CM | 761.5 | Multiple pregnancy affecting fetus or newborn | Non-standard |
| ICD9CM | V91 | Multiple gestation placenta status | Non-standard |
| ICD9CM | V91.9 | Other specified multiple gestation placenta status | Non-standard |
| ICD9CM | V91.90 | Other specified multiple gestation, unspecified number of placenta and unspecified number of amniotic sacs | Non-standard |
| ICD9CM | V91.91 | Other specified multiple gestation, with two or more monochorionic fetuses | Non-standard |
| ICD9CM | V91.92 | Other specified multiple gestation, with two or more monoamniotic fetuses | Non-standard |
| ICD9CM | V91.99 | Other specified multiple gestation, unable to determine number of placenta and number of amniotic sacs | Non-standard |
| KCD7 | O30 | Multiple gestation | Non-standard |
| KCD7 | O30.8 | Other multiple gestation | Non-standard |
| KCD7 | O30.9 | Multiple gestation, unspecified | Non-standard |
| MeSH | D011272 | Pregnancy, Multiple | Non-standard |
| Nebraska Lexicon | 16356006 | Multiple pregnancy | Non-standard |
| OXMIS | 6349BM | PREGNANCY MULTIPLE | Non-standard |
| Read | L21..00 | Multiple pregnancy | Non-standard |
| Read | L21..11 | Gestation - multiple | Non-standard |
| Read | L21y.00 | Other multiple pregnancy | Non-standard |
| Read | L21y000 | Other multiple pregnancy unspecified | Non-standard |
| Read | L21y200 | Other multiple pregnancy with antenatal problem | Non-standard |
| Read | L21yz00 | Other multiple pregnancy NOS | Non-standard |
| Read | L21z.00 | Multiple pregnancy NOS | Non-standard |
| Read | L21z000 | Multiple pregnancy NOS, unspecified | Non-standard |
| Read | L21z200 | Multiple pregnancy NOS with antenatal problem | Non-standard |
| Read | L21zz00 | Multiple pregnancy NOS | Non-standard |
| Read | Lyu3000 | [X]Other multiple gestation | Non-standard |