This is the ValueSet that contains all the codes in Screening Stage Modifier ValueSet (https://terminology.dhp.uz/fhir/integrations/ValueSet/screening-stage-modifier-vs) and Screening Stage Modifier ValueSet (https://terminology.dhp.uz/fhir/integrations/ValueSet/screening-stage-modifier-vs). E.g. what you have to deal with if you get resources containing codes in either of them