Source:http://linkedlifedata.com/resource/umls/id/C0034869
MSH: The commitment in writing, as authentic evidence, of something having legal importance. The concept includes certificates of birth, death, etc., as well as hospital, medical, and other institutional records.,HL7V3.0: <p><b>Definition:</b>The number of matching instances (number of focal classes). The document header class is the focal class of a document, a record would therefore be equal to a document.</p>,HL7V3.0: <p><b>Description:</b>Represents the HL7 V3 publishing sub-section that holds specifications related to the definition and communication of records of clinical care within the Health and Clinical Management (HM) section.</p><p><i>UsageNote:</i>V3 Specifications are published in a set of "domains", which contain interactions and related specifications for a single area of health care within which can be supported by a single, coherent set of interoperability specifications.</p><p>For publishing purposes, these domains are aggregated into sub-sections of related health care areas and these sub-