1. Entry
     Encounter Activities (2.16.840.1.113883.10.20.22.4.49)
    1. Entry
       Service Delivery Location (2.16.840.1.113883.10.20.22.4.32)
    2. Entry
       Indication (2.16.840.1.113883.10.20.22.4.19)
    3. Entry
       Encounter Diagnosis (2.16.840.1.113883.10.20.22.4.80)
      1. Entry
         Problem Observation (2.16.840.1.113883.10.20.22.4.4)
        1. Entry
           Age Observation (2.16.840.1.113883.10.20.22.4.31)
        2. Entry
           Problem Status (2.16.840.1.113883.10.20.22.4.6)
        3. Entry
           Health Status Observation (2.16.840.1.113883.10.20.22.4.5)