http://hl7.org/fhir/StructureDefinition/minLength|4.0.1

The minimum number of characters that must be present in the simple data type to be considered a \"valid\" instance.

element_id	types
Extension
Extension.extension
Extension.url
Extension.value[x]	integer
Extension
Extension.id	http://hl7.org/fhirpath/System.String
Extension.extension	Extension
Extension.url	http://hl7.org/fhirpath/System.String
Extension.value[x]	integer