{
  "tableNumber": "0161",
  "id": "v2-0161",
  "name": "AllowSubstitution",
  "title": "allowSubstitution",
  "description": "HL7-defined code system of concepts  which specify whether substitutions are allowed and, if so, the type of substitutions allowed.    Used in HL7 Version 2.x messaging in the RXO segment.",
  "url": "http://terminology.hl7.org/CodeSystem/v2-0161",
  "concepts": [
    {
      "code": "N",
      "display": "Substitutions are NOT authorized.  (This is the default - null.)"
    },
    {
      "code": "G",
      "display": "Allow generic substitutions."
    },
    {
      "code": "T",
      "display": "Allow therapeutic substitutions"
    }
  ]
}