.Clinical
..Concept - reference to a terminology or just text
Cardinality: 1..1
CodeableConcept
Identification of the condition, problem or diagnosis or recording of absent/unknown problems.

value must be a Codeable Concept (IPS)
value is bound to Problems - IPS (>1000 codes)
codinghas cardinality: 1..1
.Other Data.
..Who has the condition?
Cardinality: 1..1
Reference
Indicates the patient or group who the condition record is associated with.

value must point to a RareLink IPS Patient
referencehas cardinality: 1..1

doco Documentation for this format