Stream: implementers
Topic: FHIR JSON Mappings for PT/INR
Erika ONeill (Mar 28 2018 at 15:28):
Hello, I cannot find Observation JSON payload mappings for Prothrombin and International Normalized Ratio on the HL7 FHIR site. Can someone please point me in the right direction?
Patrick Werner (Mar 28 2018 at 15:53):
i'm not sure if i understand the question right
Patrick Werner (Mar 28 2018 at 15:53):
An example of a JSON represented resource of an INR Observation in FHIR would be:
{ "resourceType": "Observation", "id": "f005", "identifier": [ { "use": "official", "system": "http://www.bmc.nl/zorgportal/identifiers/observations", "value": "6327" } ], "status": "final", "code": { "coding": [ { "system": "http://loinc.org", "code": "34714-6", "display": "INR in Blood by Coagulation assay" } ] }, "subject": { "reference": "Patient/f001", "display": "P. van de Heuvel" }, "effectivePeriod": { "start": "2013-04-05T10:30:10+01:00", "end": "2013-04-05T10:30:10+01:00" }, "issued": "2013-04-05T15:30:10+01:00", "performer": [ { "reference": "Practitioner/f005", "display": "A. Langeveld" } ], "valueQuantity": { "value": 1 } }
Eric Haas (Mar 28 2018 at 21:39):
4528-0 –– PT panel - Platelet poor plasma by Coagulation assay
5902-2 Prothrombin time (PT) R s
6301-6 INR in Platelet poor plasma by Coagulation assay R {INR}
5901-4 Prothrombin time (PT) in Control Platelet poor plasma by Coagulation assay O s
So example FHIR Observation json instances would be using .related in STU3 would be:
Panel:
{
"resourceType": "Observation",
"id": "20180328-pt-panel",
"meta": {
"versionId": "1",
"lastUpdated": "2018-03-28T16:21:33Z"
},
"identifier": [
{
"system": "https://acmelabs.com/identifiers",
"value": "20180328-1"
}
],
"status": "final",
"category": [
{
"coding": [
{
"system": "http://hl7.org/fhir/observation-category",
"code": "laboratory"
}
]
}
],
"code": {
"coding": [
{
"system": "http://loinc.org",
"code": "4528-0",
"display": "PT panel - Platelet poor plasma by Coagulation assay"
}
]
},
"subject": {
"reference": "Patient/example"
},
"issued": "2013-04-04T14:34:00+01:00",
"performer": [
{
"reference": "Practitioner/example"
}
],
"related": [
{
"type": "has-member",
"target": {
"reference": "Observation/20180328-pt"
}
},
{
"type": "has-member",
"target": {
"reference": "Observation/20180328-inr"
}
}
]
}
PT:
{
"resourceType": "Observation",
"id": "20180328-pt",
"meta": {
"versionId": "1",
"lastUpdated": "2018-03-28T16:11:09Z"
},
"identifier": [
{
"system": "https://acmelabs.com/identifiers",
"value": "20180328-2"
}
],
"status": "final",
"category": [
{
"coding": [
{
"system": "http://hl7.org/fhir/observation-category",
"code": "laboratory"
}
]
}
],
"code": {
"coding": [
{
"system": "http://loinc.org",
"code": "5902-2",
"display": "Prothrombin time (PT)"
}
]
},
"subject": {
"reference": "Patient/example"
},
"issued": "2013-04-04T14:34:00+01:00",
"performer": [
{
"reference": "Practitioner/example"
}
],
"valueQuantity": {
"value": 10.5,
"unit": "sec",
"system": "http://unitsofmeasure.org",
"code": "s"
}
}
INR:
{
"resourceType": "Observation",
"id": "20180328-pt",
"meta": {
"versionId": "1",
"lastUpdated": "2018-03-28T16:11:09Z"
},
"identifier": [
{
"system": "https://acmelabs.com/identifiers",
"value": "20180328-2"
}
],
"status": "final",
"category": [
{
"coding": [
{
"system": "http://hl7.org/fhir/observation-category",
"code": "laboratory"
}
]
}
],
"code": {
"coding": [
{
"system": "http://loinc.org",
"code": "5902-2",
"display": "Prothrombin time (PT)"
}
]
},
"subject": {
"reference": "Patient/example"
},
"issued": "2013-04-04T14:34:00+01:00",
"performer": [
{
"reference": "Practitioner/example"
}
],
"valueQuantity": {
"value": 10.5,
"unit": "sec",
"system": "http://unitsofmeasure.org",
"code": "s"
}
}
Last updated: Apr 12 2022 at 19:14 UTC
