SHOULD SHOULD R2 R2 (Required SHOULD (Required if if known) Recommended Best Practice or Best Practice or known) Recommendation If the Recommendation There may The sending sending exist valid There may exist application application reasons in valid reasons in must be has data for particular particular able to the data circumstances circumstances to demonstrate element, it is to ignore a ignore a particular that it can REQUIRED particular item, but the full send all to populate item, but the implications must required if the data full be understood and known element. If implications carefully weighed elements, the value is must be before choosing a unless it not known, understood different course does not in the data and carefully fact gather element need weighed that data. If not be sent before the choosing a information different cannot be course. transmitted, the data element shall contain a value indicating the reason for omission of the data. SHOULD NOT SHOULD NOT - - SHOULD NOT Not Not Recommended Not Recommended Recommended MAY MAY O (Optional) O (Optional) MAY Optional Accepted/Permitted Optional - - C C - (Conditional) (Conditional) A Required to conditional be sent when data the element is conditions one that is specified in required, the HITSP required if additional known or specifications optional column are depending true upon other conditions.
SHOULD Recommended There may exist valid reasons in particular circumstances to ignore a particular item, but the full implications must be understood and carefully weighed before choosing a different course. SHOULD Best Practice or Recommendation R2 (Required if known) The sending application must be able to demonstrate that it can send all required if known elements, unless it does not in fact gather that data. If the information cannot be transmitted, the data element shall contain a value indicating the reason for omission of the data. R2 (Required if known) If the sending application has data for the data element, it is REQUIRED to populate the data element. If the value is not known, the data element need not be sent SHOULD Best Practice or Recommendation There may exist valid reasons in particular circumstances to ignore a particular item, but the full implications must be understood and carefully weighed before choosing a different course SHOULD NOT Not Recommended SHOULD NOT Not Recommended - - SHOULD NOT Not Recommended MAY Optional MAY Accepted/Permitted O (Optional) O (Optional) MAY Optional - - C (Conditional) A conditional data element is one that is required, required if known or optional depending upon other conditions. C (Conditional) Required to be sent when the conditions specified in the HITSP additional specifications column are true -
IG_LOINC_ClinDocOntology_DSTU_v01_20130821.docx