Type I diabetes is a an autoimmune disorder that falls under type IV hypersensitivity.
Give a kid with type I diabetes a severe allergy to bee stings, an allergy to penicillin, and human tetanus immunoglobulin, from a recent case of tetanus because his parents dont believe in immunizations, that results in serum sickness and you have basically covered all four hypersensitivity types and autoimmunity. For fun you can throw in chronic asthma and contact dermititis.
Autoimmune pancreatitis (another name for the same disease is sclerosing pancreatitis). Very rare, very interesting. I saw a presumed case of this while on a surg-onc sub-i. It was believed that the patient had pancreatic cancer, however, it was believed that the patient had this disease process after undergoing surgery to relieve obstruction.
Do a search on up-to-date.
Edited: I've only provided you with an autoimmune disease, not a hypersensitivity reaction.