| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| OUTPAT | OUTPAT_ICD10(Q180) | Sinus, fistula and cyst of branchial cleft | 376 | |
| INPAT | INPAT_ICD10(Q180) | Sinus, fistula and cyst of branchial cleft | 284 | |
| OUTPAT | OUTPAT_ICD10(Q188) | Other specified congenital malformations of face and neck | 174 | |
| INPAT | INPAT_ICD10(Q188) | Other specified congenital malformations of face and neck | 119 | |
| OUTPAT | OUTPAT_ICD10(Q181) | Preauricular sinus and cyst | 94 | |
| INPAT | INPAT_ICD10(Q181) | Preauricular sinus and cyst | 82 | |
| PRIM_OUT | PRIM_OUT_NOT_USED_ICD10(Q180) | Sinus, fistula and cyst of branchial cleft. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! | 16 | |
| OUTPAT | OUTPAT_ICD10(Q182) | Other branchial cleft malformations | 12 | |
| OUTPAT | OUTPAT_ICD10(Q189) | Congenital malformation of face and neck, unspecified | 11 | |
| INPAT | INPAT_ICD10(Q189) | Congenital malformation of face and neck, unspecified | 7 | |
| INPAT | INPAT_ICD10(Q182) | Other branchial cleft malformations | 6 |