| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| OUTPAT | OUTPAT_ICD10(G440) | Cluster headache syndrome | 1363 | |
| PRIM_OUT | PRIM_OUT_ICD10(G440) | Cluster headache syndrome | 927 | |
| INPAT | INPAT_ICD10(G440) | Cluster headache syndrome | 335 | |
| INPAT | INPAT_ICD9(3468X) | Other forms of migraine | 113 | |
| INPAT | INPAT_ICD8(34601) | Migraine, Morbus Harris-Horton | 35 |