This is the CodeSystem that contains codes in both ChargeItemCode (http://terminology.hl7.org/CodeSystem/chargeitem-billingcodes) and ChargeItemCode (http://terminology.hl7.org/CodeSystem/chargeitem-billingcodes).
Generated Narrative: CodeSystem 6bc4d2ed-5dce-4b44-b5ed-4678efc979ab-144
This code system http://hl7.org/fhir/comparison/CodeSystem/6bc4d2ed-5dce-4b44-b5ed-4678efc979ab-144 defines codes, but no codes are represented here