| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| INPAT | INPAT_ICD10(O640) | Obstructed labour due to incomplete rotation of fetal head | 2508 | |
| INPAT | INPAT_ICD9(6522B) | Malposition and malpresentation of foetus, Breech presentation without mention of version | 1969 | |
| INPAT | INPAT_ICD10(O641) | Obstructed labour due to breech presentation | 1728 | |
| INPAT | INPAT_ICD10(O648) | Obstructed labour due to other malposition and malpresentation | 582 | |
| INPAT | INPAT_ICD9(6522A) | Malposition and malpresentation of foetus, Breech presentation without mention of version | 567 | |
| INPAT | INPAT_ICD9(6528B) | Malposition and malpresentation of foetus, Other specified malposition or malpresentation | 521 | |
| INPAT | INPAT_ICD9(6524B) | Malposition and malpresentation of foetus, Face or brow presentation | 207 | |
| INPAT | INPAT_ICD9(6525B) | Malposition and malpresentation of foetus, High head at term | 152 | |
| INPAT | INPAT_ICD10(O643) | Obstructed labour due to brow presentation | 148 | |
| OUTPAT | OUTPAT_ICD10(O641) | Obstructed labour due to breech presentation | 107 | |
| INPAT | INPAT_ICD10(O649) | Obstructed labour due to malposition and malpresentation, unspecified | 102 | |
| INPAT | INPAT_ICD9(6523B) | Malposition and malpresentation of foetus, Transverse or oblique presentation | 96 | |
| OUTPAT | OUTPAT_ICD10(O640) | Obstructed labour due to incomplete rotation of fetal head | 94 | |
| INPAT | INPAT_ICD10(O642) | Obstructed labour due to face presentation | 91 | |
| INPAT | INPAT_ICD10(O644) | Obstructed labour due to shoulder presentation | 61 | |
| INPAT | INPAT_ICD9(6526B) | Malposition and malpresentation of foetus, Multiple gestation with malpresentation of one foetus or more | 47 | |
| INPAT | INPAT_ICD10(O645) | Obstructed labour due to compound presentation | 33 | |
| INPAT | INPAT_ICD9(6529B) | Malposition and malpresentation of foetus, Unspecified malposition or malpresentation | 28 | |
| OUTPAT | OUTPAT_ICD10(O648) | Obstructed labour due to other malposition and malpresentation | 26 | |
| INPAT | INPAT_ICD9(6523A) | Malposition and malpresentation of foetus, Transverse or oblique presentation | 22 | |
| INPAT | INPAT_ICD9(6524A) | Malposition and malpresentation of foetus, Face or brow presentation | 18 | |
| OUTPAT | OUTPAT_ICD10(O649) | Obstructed labour due to malposition and malpresentation, unspecified | 16 | |
| INPAT | INPAT_ICD9(6528A) | Malposition and malpresentation of foetus, Other specified malposition or malpresentation | 15 | |
| INPAT | INPAT_ICD9(6525A) | Malposition and malpresentation of foetus, High head at term | 13 | |
| PRIM_OUT | PRIM_OUT_NOT_USED_ICD10(O641) | Obstructed labour due to breech presentation. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! | 11 | |
| INPAT | INPAT_ICD9(6527B) | Malposition and malpresentation of foetus, Prolapsed arm | 8 | |
| OUTPAT | OUTPAT_ICD10(O644) | Obstructed labour due to shoulder presentation | 7 | |
| INPAT | INPAT_ICD9(6520A) | Malposition and malpresentation of foetus, Unstable lie | 6 | |
| INPAT | INPAT_ICD9(6520B) | Malposition and malpresentation of foetus, Unstable lie | 6 |