The Account itself does not include information about the charges, payments or adjustments, but rather those resources, such as Charge Item point to the account to which they apply. Payment and adjustment resources have not yet been developed.
The Account resource can be considered a “bucket” to which Charge Item resources are linked. These charges are processed by a billing system, which determines the responsible parties for the balance of the account. The billing system then submits claims or sends statements to the appropriate parties. Once payment is received, an adjustment is applied to the Account. The internal calculation of balances and allocation of responsibility is expected to be internal to the billing systems. Only the inputs and outputs of the billing process is communicated in the relevant financial Fast Healthcare Interoperability Resources (FHIR) resources.
Fast Healthcare Interoperability Resources (FHIR) is a draft standard describing data formats and elements (known as “resources”) and an application programming interface (API) for exchanging electronic health records. The standard was created by the Health Level Seven International (HL7) health-care standards organization.
Its goal is to facilitate interoperation between legacy healthcare systems, to make it easy to provide healthcare information to healthcare providers and individuals on a wide variety of devices from computers to tablets to cell phones, and to allow third-party application developers to provide medical applications which can be easily integrated into existing systems.
FHIR provides an alternative to document-centric approaches by directly exposing discrete data elements as services. For example, basic elements of healthcare like patients, admissions, diagnostic reports and medications can each be retrieved and manipulated via their own resource URLs (Uniform Resource Locators). FHIR was supported at an American Medical Informatics Association meeting by many EHR (Electronic Health Record) vendors which value its open and extensible nature.