| Description | 
                     
                        
                         (CCD) Any problem or allergy observation may reference a problem status observation.
                           This structure is included in the target observation using the <entryRelationship>
                           element defined in the CDA Schema. The clinical status observation records information
                           about the current status of the problem or allergy, for example, whether it is active,
                           in remission, resolved, et cetera. The example below shows the recording of clinical
                           status of a condition or allergy, and is used as the context for the following sections.
                         
                        
                        This CCD models a problem status observation as a separate observation from the problem,
                           allergy or medication observation. While this model is different from work presently
                           underway by various organizations (i.e., SNOMED, HL7, TermInfo), it is not wholly
                           incompatible with that work. In that work, qualifiers may be used to identify problem
                           status in the coded condition observation, and a separate clinical status observation
                           is no longer necessary. The use of qualifiers in the problem observation is not precluded
                           by this specification or by CCD. However, to support semantic
                           interoperability between EMR systems using different vocabularies, this specification
                           does require that problem status information also be provided in a separate observation.
                           This ensures that all EMR systems have equal access to the information, regardless
                           of the vocabularies they support.
                         
                        
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