This code system http://hl7.org/fhir/medication-cost-category defines the following codes:

Code Display Definition
banda Band A Tier A cost for this medication
bandb Band B Tier B cost for this medication
<status value="active"/> <experimental value="false"/> <publisher value="HL7 International"/> <description value="Medication Cost Category Codes"/> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction> <caseSensitive value="true"/> <valueSet value="http://hl7.org/fhir/ValueSet/medication-cost-category"/> <content value="complete"/> <concept> <code value="banda"/> <display value="Band A"/> <definition value="Tier A cost for this medication"/> </concept> <concept> <code value="bandb"/> <display value="Band B"/> <definition value="Tier B cost for this medication"/> </concept> </CodeSystem>