Unified clinical database across Diagnosis (CM), Procedures (PCS), and Reimbursement (DRG) grouping standards.
Migraine without aura
Migraine without aura, intractable
Chronic migraine without aura
Migraine without aura, not intractable
Chronic migraine without aura, intractable
Migraine without aura, intractable, without status migrainosus