| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| INPAT | INPAT_ICD9(6510B) | Multiple gestation, Twin pregnancy | 558 | |
| INPAT | INPAT_ICD10(O840) | Multiple delivery, all spontaneous | 540 | |
| INPAT | INPAT_ICD8(65007) | Delivery without mention of complication, Multiple pregnancy, all presentations | 462 | |
| INPAT | INPAT_ICD10(O842) | Multiple delivery, all by caesarean section | 400 | |
| INPAT | INPAT_ICD10(O848) | Other multiple delivery | 228 | |
| INPAT | INPAT_ICD8(65740) | For another reason, prolonged childbirth, multiple childbirth, Occipital presentation | 93 | |
| INPAT | INPAT_ICD8(65747) | For another reason, prolonged childbirth, multiple childbirth, Multiple pregnancy, all presentations | 57 | |
| INPAT | INPAT_ICD10(O841) | Multiple delivery, all by forceps and vacuum extractor | 49 | |
| INPAT | INPAT_ICD9(6511B) | Multiple gestation, Triplet pregnancy | 22 | |
| OUTPAT | OUTPAT_ICD10(O840) | Multiple delivery, all spontaneous | 13 | |
| OUTPAT | OUTPAT_ICD10(O848) | Other multiple delivery | 11 | |
| INPAT | INPAT_ICD8(65746) | For another reason, prolonged childbirth, multiple childbirth, Complete or incomplete breech presentation | 10 | |
| INPAT | INPAT_ICD10(O849) | Multiple delivery, unspecified | 7 | |
| OUTPAT | OUTPAT_ICD10(O841) | Multiple delivery, all by forceps and vacuum extractor | 6 | |
| OUTPAT | OUTPAT_ICD10(O842) | Multiple delivery, all by caesarean section | 6 |