Source:http://linkedlifedata.com/resource/umls/id/C0038846
MSH: The posture of an individual lying face up.,NCI: A posterior recumbent body position whereby the person lies on its back and faces upward.,NCI: A posterior recumbent body position whereby the person lies on its back and faces upward. (NCI),HL7V3.0: <p><b><i>Deprecation Comment:</i></b>This concept has been deprecated because it does not describe a type of Act (as it should in the ActClass code system), but rather encodes the result or value of an observation. The same code has been added to the ObservationValue code system.</p>