This case-sensitive code system http://hl7.org/fhir/uv/order-catalog/CodeSystem/laboratory-service-reimbursability defines the following codes:

Code	Display	Definition
none	no reimbursement provided for the service in general	The service is usually not covered by insurance plans, and charged to the paying party
normal	normal reimbursement dispositions applicable to the service	The service is usually reimbursed (partially or totally) under general dispositions defined in insurance plans, independently of the service
conditional	reimbursement of service subject to conditions	The service reimbursement is conditioned by the clinical context of the order
partial	normal reimbursement limited to a part of the service	The service is composed of a part that is usually reimbursed under general dispositions defined in insurance plans, and of a part that is non-reimbursable
conditional-partial	reimbursement limited to a part of the service and subject to conditions	The service is composed of a part that is reimbursable depending on the clinical context, and of a part that is non-reimbursable