| Source | Code | Name | Case count | Share of cases (%) |
|---|---|---|---|---|
| INPAT | INPAT_ICD8(38200) | Acute / Acute otitis media with mastoiditis | 92 | |
| OUTPAT | OUTPAT_ICD10(H700) | Acute mastoiditis | 90 | |
| INPAT | INPAT_ICD10(H700) | Acute mastoiditis | 65 | |
| PRIM_OUT | PRIM_OUT_NOT_USED_ICD10(H700) | Acute mastoiditis. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! | 31 | |
| INPAT | INPAT_ICD8(38300) | Mastoiditis without mention of otitis media, Acute | 12 | |
| INPAT | INPAT_ICD9(3830A) | Acute mastoiditis | 10 |