f:ElementDefinition extension with URL = 'http://hl7.org/fhir/StructureDefinition/elementdefinition-allowedUnits': maximum cardinality of 'extension' is 1 representation: maximum cardinality of 'representation' is 0 slicing: maximum cardinality of 'slicing' is 0 short: maximum cardinality of 'short' is 0 contentReference: maximum cardinality of 'contentReference' is 0 fixed[x]: maximum cardinality of 'fixed[x]' is 0 pattern[x]: maximum cardinality of 'pattern[x]' is 0 isModifier: maximum cardinality of 'isModifier' is 0 isSummary: maximum cardinality of 'isSummary' is 0 ElementDefinition Min <= Max (inherited) if the element definition has a contentReference, it cannot have type, defaultValue, fixed, pattern, example, minValue, maxValue, maxLength, or binding (inherited) Fixed value may only be specified if there is one type (inherited) Pattern may only be specified if there is one type (inherited) Pattern and fixed are mutually exclusive (inherited) Binding can only be present for coded elements, string, and uri (inherited) Types must be unique by code (inherited) Constraints must be unique by key (inherited) default value and meaningWhenMissing are mutually exclusive (inherited) sliceName must be composed of proper tokens separated by "/" (inherited) Must have a modifier reason if isModifier = true (inherited) Element names cannot include some special characters (inherited) Element names should be simple alphanumerics with a max of 64 characters, or code generation tools may be broken (inherited) sliceIsConstraining can only appear if slicename is present (inherited) All FHIR elements must have a @value or children (inherited) ElementDefinition.extension All FHIR elements must have a @value or children Must have either extensions or value[x], not both All FHIR elements must have a @value or children (inherited) Must have either extensions or value[x], not both (inherited) All FHIR elements must have a @value or children (inherited) Must have either extensions or value[x], not both (inherited) f:ElementDefinition/f:extension id: maximum cardinality of 'id' is 1 url: minimum cardinality of 'url' is 1 url: maximum cardinality of 'url' is 1 value[x]: minimum cardinality of 'value[x]' is 1 value[x]: maximum cardinality of 'value[x]' is 1 id: maximum cardinality of 'id' is 1 url: minimum cardinality of 'url' is 1 url: maximum cardinality of 'url' is 1 value[x]: minimum cardinality of 'value[x]' is 1 value[x]: maximum cardinality of 'value[x]' is 1 ElementDefinition.extension.extension All FHIR elements must have a @value or children (inherited) Must have either extensions or value[x], not both (inherited) All FHIR elements must have a @value or children (inherited) Must have either extensions or value[x], not both (inherited) ElementDefinition.extension.value[x] 1 All FHIR elements must have a @value or children (inherited) All FHIR elements must have a @value or children (inherited) ElementDefinition.modifierExtension All FHIR elements must have a @value or children (inherited) Must have either extensions or value[x], not both (inherited) ElementDefinition.path All FHIR elements must have a @value or children (inherited) ElementDefinition.representation All FHIR elements must have a @value or children (inherited) ElementDefinition.sliceName All FHIR elements must have a @value or children (inherited) ElementDefinition.sliceIsConstraining All FHIR elements must have a @value or children (inherited) ElementDefinition.label All FHIR elements must have a @value or children (inherited) ElementDefinition.code All FHIR elements must have a @value or children (inherited) ElementDefinition.slicing If there are no discriminators, there must be a definition (inherited) All FHIR elements must have a @value or children (inherited) ElementDefinition.slicing.extension All FHIR elements must have a @value or children Must have either extensions or value[x], not both ElementDefinition.slicing.discriminator All FHIR elements must have a @value or children (inherited) ElementDefinition.slicing.discriminator.extension All FHIR elements must have a @value or children Must have either extensions or value[x], not both ElementDefinition.slicing.discriminator.type All FHIR elements must have a @value or children (inherited) ElementDefinition.slicing.discriminator.path All FHIR elements must have a @value or children (inherited) ElementDefinition.slicing.description All FHIR elements must have a @value or children (inherited) ElementDefinition.slicing.ordered All FHIR elements must have a @value or children (inherited) ElementDefinition.slicing.rules All FHIR elements must have a @value or children (inherited) ElementDefinition.short All FHIR elements must have a @value or children (inherited) ElementDefinition.definition All FHIR elements must have a @value or children (inherited) ElementDefinition.comment All FHIR elements must have a @value or children (inherited) ElementDefinition.requirements All FHIR elements must have a @value or children (inherited) ElementDefinition.alias All FHIR elements must have a @value or children (inherited) ElementDefinition.min All FHIR elements must have a @value or children (inherited) ElementDefinition.max Max SHALL be a number or "*" (inherited) All FHIR elements must have a @value or children (inherited) ElementDefinition.base All FHIR elements must have a @value or children (inherited) ElementDefinition.base.extension All FHIR elements must have a @value or children Must have either extensions or value[x], not both ElementDefinition.base.path All FHIR elements must have a @value or children (inherited) ElementDefinition.base.min All FHIR elements must have a @value or children (inherited) ElementDefinition.base.max All FHIR elements must have a @value or children (inherited) ElementDefinition.contentReference All FHIR elements must have a @value or children (inherited) f:ElementDefinition/f:type profile: maximum cardinality of 'profile' is 0 aggregation: maximum cardinality of 'aggregation' is 0 ElementDefinition.type Aggregation may only be specified if one of the allowed types for the element is a reference (inherited) targetProfile is only allowed if the type is Reference or canonical (inherited) All FHIR elements must have a @value or children (inherited) ElementDefinition.type.extension All FHIR elements must have a @value or children Must have either extensions or value[x], not both ElementDefinition.type.code All FHIR elements must have a @value or children (inherited) ElementDefinition.type.profile All FHIR elements must have a @value or children (inherited) ElementDefinition.type.targetProfile All FHIR elements must have a @value or children (inherited) ElementDefinition.type.aggregation All FHIR elements must have a @value or children (inherited) ElementDefinition.type.versioning All FHIR elements must have a @value or children (inherited) ElementDefinition.defaultValue[x] 1 All FHIR elements must have a @value or children (inherited) ElementDefinition.meaningWhenMissing All FHIR elements must have a @value or children (inherited) ElementDefinition.orderMeaning All FHIR elements must have a @value or children (inherited) ElementDefinition.fixed[x] 1 All FHIR elements must have a @value or children (inherited) ElementDefinition.pattern[x] 1 All FHIR elements must have a @value or children (inherited) ElementDefinition.example All FHIR elements must have a @value or children (inherited) ElementDefinition.example.extension All FHIR elements must have a @value or children Must have either extensions or value[x], not both ElementDefinition.example.label All FHIR elements must have a @value or children (inherited) ElementDefinition.example.value[x] 1 All FHIR elements must have a @value or children (inherited) ElementDefinition.minValue[x] 1 All FHIR elements must have a @value or children (inherited) ElementDefinition.maxValue[x] 1 All FHIR elements must have a @value or children (inherited) ElementDefinition.maxLength All FHIR elements must have a @value or children (inherited) ElementDefinition.condition All FHIR elements must have a @value or children (inherited) ElementDefinition.constraint Constraints should have an expression or else validators will not be able to enforce them (inherited) All FHIR elements must have a @value or children (inherited) ElementDefinition.constraint.extension All FHIR elements must have a @value or children Must have either extensions or value[x], not both ElementDefinition.constraint.key All FHIR elements must have a @value or children (inherited) ElementDefinition.constraint.requirements All FHIR elements must have a @value or children (inherited) ElementDefinition.constraint.severity All FHIR elements must have a @value or children (inherited) ElementDefinition.constraint.human All FHIR elements must have a @value or children (inherited) ElementDefinition.constraint.expression All FHIR elements must have a @value or children (inherited) ElementDefinition.constraint.xpath All FHIR elements must have a @value or children (inherited) ElementDefinition.constraint.source All FHIR elements must have a @value or children (inherited) ElementDefinition.mustSupport All FHIR elements must have a @value or children (inherited) ElementDefinition.isModifier All FHIR elements must have a @value or children (inherited) ElementDefinition.isModifierReason All FHIR elements must have a @value or children (inherited) ElementDefinition.isSummary All FHIR elements must have a @value or children (inherited) ElementDefinition.binding ValueSet SHALL start with http:// or https:// or urn: (inherited) All FHIR elements must have a @value or children (inherited) ElementDefinition.binding.extension All FHIR elements must have a @value or children Must have either extensions or value[x], not both ElementDefinition.binding.strength All FHIR elements must have a @value or children (inherited) ElementDefinition.binding.description All FHIR elements must have a @value or children (inherited) ElementDefinition.binding.valueSet All FHIR elements must have a @value or children (inherited) ElementDefinition.mapping All FHIR elements must have a @value or children (inherited) ElementDefinition.mapping.extension All FHIR elements must have a @value or children Must have either extensions or value[x], not both ElementDefinition.mapping.identity All FHIR elements must have a @value or children (inherited) ElementDefinition.mapping.language All FHIR elements must have a @value or children (inherited) ElementDefinition.mapping.map All FHIR elements must have a @value or children (inherited) ElementDefinition.mapping.comment All FHIR elements must have a @value or children (inherited)