Intersection of http://terminology.hl7.org/CodeSystem/standardBillingUnit and http://terminology.hl7.org/CodeSystem/standardBillingUnit
This is the CodeSystem that contains codes in both Standard Billing Unit (http://terminology.hl7.org/CodeSystem/standardBillingUnit) and Standard Billing Unit (http://terminology.hl7.org/CodeSystem/standardBillingUnit).