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Luis Angel Pére... · Jul 31, 2023

Jeffrey is totally right, you can't add multiple ranges in an OBX segment, the idea of that field is just to add the valid range for the observation, you can see that there is another field in that segment (OBX:12 - Efective date of Reference Range) in wich you can define the date when the range start to be valid.

Another option to the NTE segment is to repeat the OBX segment with the same value of the observation so many times as range values you have, informing the OBX:12 with a different date and the valid range for that date.

Luis Angel Pére... · Jul 26, 2023

There is a DTL by default when you install the FHIR server or the FHIR adapter...in my case I've installed the adapter and the DTL is named:

HS.FHIR.DTL.vR4.SDA3.AllergyIntolerance.Allergy

This transformation is used to parse an object of type HS.FHIR.DTL.vR4.Model.Resource.AllergyIntolerance into a HS.SDA3.Allergy, you can use it as a reference for your transformation. 

Luis Angel Pére... · Jul 25, 2023

Something like this example?
http://hl7.org/fhir/R4/allergyintolerance-fishallergy.json.html

{
  "resourceType": "AllergyIntolerance",
  "id": "fishallergy",
  "text": {
    "status": "additional",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n      <p>allergy is to fresh fish. Tolerates canned fish</p>\n      <p>recordedDate:2015-08-06T00:00:00-06:00</p>\n      <p>substance:Fish - dietary (substance)</p>\n    </div>"
  },
  "identifier": [
    {
      "system": "http://acme.com/ids/patients/risks",
      "value": "49476535"
    }
  ],
  "clinicalStatus": {
    "coding": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/allergyintolerance-clinical",
        "code": "active",
        "display": "Active"
      }
    ]
  },
  "verificationStatus": {
    "coding": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/allergyintolerance-verification",
        "code": "confirmed",
        "display": "Confirmed"
      }
    ]
  },
  "category": [
    "food"
  ],
  "code": {
    "coding": [
      {
        "system": "http://snomed.info/sct",
        "code": "227037002",
        "display": "Fish - dietary (substance)"
      }
    ],
    "text": "Allergic to fresh fish. Tolerates canned fish"
  },
  "patient": {
    "reference": "Patient/example"
  },
  "recordedDate": "2015-08-06T15:37:31-06:00",
  "recorder": {
    "reference": "Practitioner/example"
  }
}