Id2.16.840.1.113883.10.20.6.2.9Effective Date2016‑12‑15 06:15:47
Statusdraft DraftVersion Label2.1
NamePurposeofReferenceObservationDisplay NamePurpose of Reference Observation
Description
A Purpose of Reference Observation describes the purpose of the DICOM composite object reference. Appropriate codes, such as externally defined DICOM codes, may be used to specify the semantics of the purpose of reference. When this observation is absent, it implies that the reason for the reference is unknown.
ContextParent nodes of template element with id 2.16.840.1.113883.10.20.6.2.9
ClassificationCDA Entry Level Template
Open/ClosedOpen (other than defined elements are allowed)
RelationshipSpecialization: template 2.16.840.1.113883.10.12.303 CDA Observation (2005‑09‑07)
ref
ad1bbr-

Specialization: template 2.16.840.1.113883.10.20.6.2.9 Purpose of Reference Observation (2015‑08‑13)
ref
ccda-
ItemDTCardConfDescriptionLabel
cda:observation
Purpdotstion
@classCode
cs1 … 1FOBSCONFdots9264
 SHALL contain exactly one [1..1] @classCode="OBS" Observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:81-9264).
@moodCode
cs1 … 1FEVNCONFdots9265
 SHALL contain exactly one [1..1] @moodCode="EVN" Event (CodeSystem: ActMood urn:oid:2.16.840.1.113883.5.1001 STATIC) (CONF:81-9265).
cda:templateId
II1 … 1MSHALL contain exactly one [1..1] templateId (CONF:81-9266) such that itCONFdots9266
@root
uid1 … 1F2.16.840.1.113883.10.20.6.2.9CONFdots0531
 SHALL contain exactly one [1..1] @root="2.16.840.1.113883.10.20.6.2.9" (CONF:81-10531).
cda:code
CD1 … 1MSHALL contain exactly one [1..1] code (CONF:81-9267).CONFdots9267
@code
CONF1 … 1FASSERTION
@codeSystem
1 … 1F2.16.840.1.113883.5.4
cda:value
CD0 … 1RSHOULD contain zero or one [0..1] value with @xsi:type="CD", where the code SHOULD be selected from ValueSet DICOMPurposeOfReference urn:oid:2.16.840.1.113883.11.20.9.28 DYNAMIC (CONF:81-9273).

The value element is a SHOULD to allow backwards compatibility with the DICOM CMET. Note that the use of ASSERTION for the code differs from the DICOM CMET. This is intentional. The DICOM CMET was created before the Term Info guidelines describing the use of the assertion pattern were released. It was determined that this IG should follow the latest Term Info guidelines. Implementers using both this IG and the DICOM CMET should be aware of this difference and apply appropriate transformations.
CONFdots9273
 CONF
The value of @code shall be drawn from value set 2.16.840.1.113883.11.20.9.28 DICOMPurposeOfReference (DYNAMIC)