This class represents the provision of a healthcare-related product, procedure, or service that may be charged to the patient or to the patient's Health Plan. This class serves to connect the clinical information that may be recorded in an EHR, such as a procedure or the dispensing of a drug, to the financial information detailing the billing and adjudication of charges for that clinical activity. "The resource ChargeItem describes the provision of healthcare provider products for a certain patient, therefore referring not only to the product, but containing in addition details of the provision, like date, time, amounts and participating organizations and persons. Main Usage of the ChargeItem is to enable the billing process and internal cost allocation." - HL7 FHIR, ChargeItem