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 07b973d6-97cd-42d7-b76a-7b2793e3363b-144
This code system http://hl7.org/fhir/comparison/CodeSystem/07b973d6-97cd-42d7-b76a-7b2793e3363b-144 defines codes, but no codes are represented here