ClinicalDocument/participant(s) MAY be present. When present, this element SHALL be
in accordance with the HL7 CDA R2 standard with a time element and further constrained
by this specification to require the presence of name, addr and telecom.
In particular, when the ordering provider of the order (or group of orders) fulfilled
by this laboratory report is present in the CDA, it SHALL be documented as a participant
with the attribute typeCode valued “REF” (referrer). Additionally, the ordering provider
SHALL have the following:
<templateId root="1.3.6.1.4.1.19376.1.3.3.1.6"/> - The templateId element identifies
this participant as an ordering physician. The templateId SHALL have root="1.3.6.1.4.1.19376.1.3.3.1.6".