The specimen is often implied by the observation code. In the context of this Observation-laboratory-uv-ips profile, specimen should be provided only when it is not implied by the Observation.code, and when further information about the specimen needs to be captured (such as specimen source body site). In case of a laboratory panel/study using a single specimen , which needs further description (like a CSF microbiology study), the specimen is introduced by this element. In case of a dynamic function test using multiple specimens, each specimen shall be further described, if needed, within the sub-observation that was produced on this specimen.

A reference to an Observation resource playing the role of sub-observation of the current one. For instance an individial test member of a panel.

For a discussion on the ways Observations can be assembled in groups together see Notes below.

A reference to another Observation, which is constrained to valueAttachment, in order to convey an illustrative media content.