A<unk>  is an itemized form, used by healthcare providers in the United States, which details services provided to a patient. It is the main data source for creation of a healthcare claim, which will be submitted to payers (insurances, funds, programs) for reimbursement. There is no standard format for a<unk>  but it usually covers certain key information about the provider, the patient, and the type of care.
Superbill
Drustbed
Hangover
Cowlick
Wart
Whitlow
Squawk 
Sniffle