The diagnostic criteria of asthma for granted special medication reimbursement from the Social Insurance Institution
| A typical history, clinical features and course of asthma must be documented in the medical certificate and the following physiological criteria are applied |
| At least one of the following criteria |
| A variation of ≥20% in diurnal PEF recording (reference to maximal value) |
| An increase of ≥15% in PEF of FEV1 with β2-agonist |
| A decrease of ≥15% in PEF or FEV1 in exercise testing |
| And |
| A continuing regular use of asthma medication which has lasted for 6 months at the time of the decision |
PEF: peak expiratory flow rate
In addition to the percentage limits given, an absolute limit value of ≥50 L·min−1 is used
FEV1: forced expiratory volume in one second. In addition to the percentage limits given, an absolute limit value of ≥0.15 L is used