unsignedInt

primitive type

Base StructureDefinition for unsignedInt type: An integer with a value that is not negative (e.g. >= 0)

Official spec
PathCard.TypeDescription & Constraints
unsignedInt0..*Primitive Type unsignedInt
.id0..1Stringxml:id (or equivalent in JSON)
.extension0..*ExtensionAdditional content defined by implementations
.value0..1StringPrimitive value for unsignedInt