8.2.3.2.1 Acetylsalicylic acid-overuse headache

Diagnostic criteria:
  1. Headache fulfilling criteria for 8.2 Medication-overuse headache
  2. Regular intake of acetylsalicylic acid on ≥15 days/month for >3 months.
Comment:

Acetylsalicylic acid is a non-steroidal anti-inflammatory drug (NSAID) but has other, unique activity. Consequently, 8.2.3.2.1 Acetylsalicylic acid-overuse headache is coded as a separate subform.