| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| INPAT | INPAT_ICD9(6510B) | Multiple gestation, Twin pregnancy | 503 | |
| INPAT | INPAT_ICD10(O840) | Multiple delivery, all spontaneous | 484 | |
| INPAT | INPAT_ICD8(65007) | Delivery without mention of complication, Multiple pregnancy, all presentations | 420 | |
| INPAT | INPAT_ICD10(O842) | Multiple delivery, all by caesarean section | 357 | |
| INPAT | INPAT_ICD10(O848) | Other multiple delivery | 204 | |
| INPAT | INPAT_ICD8(65740) | For another reason, prolonged childbirth, multiple childbirth, Occipital presentation | 83 | |
| INPAT | INPAT_ICD8(65747) | For another reason, prolonged childbirth, multiple childbirth, Multiple pregnancy, all presentations | 53 | |
| INPAT | INPAT_ICD10(O841) | Multiple delivery, all by forceps and vacuum extractor | 39 | |
| INPAT | INPAT_ICD9(6511B) | Multiple gestation, Triplet pregnancy | 21 | |
| OUTPAT | OUTPAT_ICD10(O840) | Multiple delivery, all spontaneous | 11 | |
| INPAT | INPAT_ICD8(65746) | For another reason, prolonged childbirth, multiple childbirth, Complete or incomplete breech presentation | 10 | |
| OUTPAT | OUTPAT_ICD10(O848) | Other multiple delivery | 10 | |
| INPAT | INPAT_ICD10(O849) | Multiple delivery, unspecified | 6 |