Optional_The diagnosis or procedure relevant to the encounter
OptionalextensionAdditional content defined by implementations
OptionalidUnique id for inter-element referencing
OptionalmodifierExtensions that cannot be ignored even if unrecognized
OptionalrankRanking of the diagnosis (for each role type)
OptionaluseRole that this diagnosis has within the encounter (e.g. admission, billing, discharge …)
Ranking of the diagnosis (for each role type)