1. Section
     Vital Signs Section (entries optional) (2.16.840.1.113883.10.20.22.2.4)
    1. Entry
       Vital Signs Organizer (2.16.840.1.113883.10.20.22.4.26)
      1. Entry
         Vital Sign Observation (2.16.840.1.113883.10.20.22.4.27)