description: Conformance profile to check SearchParameters for conformance to the [Nictiz profiling guidelines for FHIR R4](https://informatiestandaarden.nictiz.nl/wiki/FHIR:V1.0_FHIR_Profiling_Guidelines_R4). package_name: nictiz.fhir.nl.r4.profilingguidelines derivation: constraint name: ProfilingGuidelinesR4_SearchParameters type: SearchParameter elements: publisher: pattern: {type: String, value: Nictiz} index: 0 contact: index: 1 elements: name: pattern: {type: String, value: Nictiz} index: 2 telecom: pattern: type: ContactPoint value: {use: work, value: 'https://www.nictiz.nl', system: url} index: 3 required: [name, telecom] purpose: {index: 4} code: constraint: sd-pg-04: {human: The code of the SearchParameter should consist of lowercase words separated by dashes, severity: error, expression: '$this.length() = $this.replaceMatches(''[^a-z-]'', '''').length()'} index: 5 expression: {index: 6} xpath: {index: 7} xpathUsage: {index: 8} package_version: 0.10.1 class: profile kind: resource url: http://nictiz.nl/fhir/StructureDefinition/ProfilingGuidelinesR4-SearchParameters base: http://hl7.org/fhir/StructureDefinition/SearchParameter version: 0.10.1 required: [expression, publisher, contact, purpose]