3000 yuan. Crohn's disease is a common chronic disease. Outpatient medication within a settlement year, the individual pays 800 yuan first, and the rest is reimbursed 85% according to regulations. The reimbursement limit of biological agents for Crohn's disease is 3000 yuan/year. Crohn's disease is a chronic inflammatory granulomatous disease of digestive tract with unknown etiology, which can occur in all segments of digestive tract from oral cavity to anus, and is more common in terminal ileum and adjacent colon.