| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| OUTPAT | OUTPAT_ICD10(Q261) | Persistent left superior vena cava | 31 | |
| INPAT | INPAT_ICD10(Q261) | Persistent left superior vena cava | 25 | |
| OUTPAT | OUTPAT_ICD10(Q263) | Partial anomalous pulmonary venous connection | 25 | |
| INPAT | INPAT_ICD10(Q263) | Partial anomalous pulmonary venous connection | 23 | |
| OUTPAT | OUTPAT_ICD10(Q268) | Other congenital malformations of great veins | 8 | |
| INPAT | INPAT_ICD10(Q268) | Other congenital malformations of great veins | 5 | |
| PRIM_OUT | PRIM_OUT_NOT_USED_ICD10(Q263) | Partial anomalous pulmonary venous connection. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! | 5 |