Are expenses for teeth whitening eligible under the Health FSA?

Teeth whitening is generally not an eligible expense for reimbursement – at least not if tooth discoloration is simply the result of aging and the whitening is done for cosmetic purposes. But if tooth discoloration (rising to the level of deformity) was caused by disease, birth defect or injury, expenses for teeth whitening might be reimbursable. A doctor’s letter of recommendation certifying the underlying medical condition and/or cause would be required.