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 99737e40-ad3a-46a8-9eaa-048706a5e684-144
This code system http://hl7.org/fhir/comparison/CodeSystem/99737e40-ad3a-46a8-9eaa-048706a5e684-144 defines codes, but no codes are represented here