This is the ValueSet that contains all the codes in ChargeItem Types (https://nrces.in/ndhm/fhir/r4/ValueSet/ndhm-chargeitem-types) and ChargeItem Type (https://nrces.in/ndhm/fhir/r4/ValueSet/ndhm-chargeitem-types). E.g. what you have to deal with if you get resources containing codes in either of them