4750-04 MEDICARE RECORDS - Billing and cost report materials. RETENTION: 6 years and 3 months after the bill is paid. (Medicare Hospital Manual HIM-10, Sec. 413(B) Rev. No. 572.)

4775-04 PATIENT RECORDS - Medical records including laboratory reports and master index to records, of persons treated in local health programs and similar records created as the result of control or surveillance measures instituted by a local health authority.

a) Adult health, child health, chronically ill and disabled children, and communicable diseases. RETENTION: 5 years past the last date on which service was given or until the patient's 21st birthday, whichever later.