This is the CodeSystem that contains codes in both CDC Local Coding System (https://phinvads.cdc.gov/vads/ViewCodeSystem.action?id=2.16.840.1.114222.4.5.274) and CDC Local Coding System (https://phinvads.cdc.gov/vads/ViewCodeSystem.action?id=2.16.840.1.114222.4.5.274).