CID 21 Patient Equipment Relationship

CID 21 Patient Equipment Relationship (Current)
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Table CID 21. Patient Equipment Relationship

Coding Scheme Designator	Code Value	Code Meaning	SNOMED-RT ID	UMLS Concept Unique ID
SCT	399366008	oblique	R-10516	C1302343
SCT	102540008	headfirst	F-10470	C0522020
SCT	102541007	feet-first	F-10480	C0522022
SCT	399220000	transverse	R-10515	C1302259
DCM	126830	left first
DCM	126831	right first
DCM	126832	posterior first
DCM	126833	anterior first

In a prior version of this Context Group, the codes G-5190 and G-5191 were specified for the concepts "headfirst" and "feet-first". The use of these codes is deprecated as they are not actually in SNOMED. Although there is minimal possibility of misinterpretation with SOP Instances that may include the deprecated use, receiving applications should be aware of this change; see Annex J.
For devices that do not have a conventional gantry geometry, the vendor of that device may describe in the Conformance Statement how the codes are interpreted with respect to the device geometry.
(126830, DCM, "left first"), (126831, DCM, "right first), (126832, DCM, "posterior first) and (126833, DCM, "anterior first) are more specific than (399220000, SCT, "transverse") in that they specify which side of the patient is towards the front of the equipment.
For quadrupeds, separate concepts for ventral and dorsal are not introduced, rather it is expected that anterior and posterior will be considered synonymous as they are when applied to the trunk.

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