6.2.3.2. Anatomic Region Sequence (0008,2218)

According to DICOM, this sequence identifies the anatomic region of interest, i.e., external anatomy, surface anatomy, or general region of the body. Only a single Item is permitted in this Sequence.

When applied to orthodontic photographs, the anatomic region is Mouth for intraoral views, and Head/Neck for extraoral views.

Table CID 4028. Craniofacial Anatomic Region

code scheme designator	code value	code meaning	notes
SCT	123851003	Mouth region structure (body structure)	Used for IV-* intraoral views.
SCT	774007	Structure of head and/or neck (body structure)	Used for EV-* extraoral views. This code was selected, because it is the most detailed code that includes the ear as well since the ear is present in both frontal and lateral extra oral views.

6.2.3.2.1. Anatomic Region Modifier Sequence (0008,2220)

This modifier is used to clarify which side of the region is contained in the image.

Table CID 247. Laterality Left-Right Only

code scheme designator	code value	code meaning	notes
SCT	24028007	Right (qualifier value)
SCT	7771000	Left (qualifier value)