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Smoking Status & FHIR Observation

Overview

Representing a patient’s smoking behavior through the core FHIR Observation Resource.

The profile restricts observation code to be set in 72166-2 Tobacco smoking status NHIS (LOINC).

Each Observation has next elements:

  • a status
  • a code for smoking observation
  • a patient
  • a date representing when the smoking status was recorded
  • a result value code for smoking status

Profile specific implementation guidance:

Smoking observation LOINC = 72166-2 Tobacco smoking status NHIS

This resource conforms to USCDI V1 profile for Observation - refer to StructureDefinition US Core Smokingstatus. Observation response will be provided in JSON (refers to Capability Statement) format as per FHIR standard R4 version.

Must support elements, mandatory and optional search parameters

Observation must support these elements:

  • status
  • code
  • subject
  • issued
  • valueCodeableConcept

The syntax used to describe the interactions is described here.

The following search parameters and search parameter combinations SHALL be supported:

SHALL support searching for all Observation for a patient using the patient and code search parameters:

  • including optional support for OR search on code (e.g.code={system|}[code],{system|}[code])
GET [base url]/Observation?patient={Type/}[id]&code=http://loinc.org|72166-2

The response to any search operation is always a list of resources in a Bundle or an Operation Outcome.

Observation By Patient Id

Search for Observation by patient.

METHOD GET

[base url]/Observation?patient={Type/}[id]

PARAMS

HEADERS

The Authorization token SHALL be obtained during Authentication and Authorization process. Goto Authentication and Authorization for further details.

Header Type Required/Optional Value
Authorization string required 'Bearer'

RESPONSES

Code Description Comment
200 OK The request was processed successfully
400 Bad request Invalid request parameters or FHIR operation outcome resource returned
401 Unauthorized This code indicates that the client request has not been completed because it lacks valid authentication credentials for the requested resource
404 no Route matched with those values The request was able to communicate with a given server, but the server could not find what was requested
500 Internal Server Error The server has encountered a situation it doesn't know how to handle

EXAMPLE:

curl --location --request GET 'https://demo.kodjin.com/fhir/Observation?patient=Patient/c5137fa5-3216-b12a-cbbc-a0c6bef361g7' \
--header 'Authorization: Bearer fe1cd986-1ac7-4c26-b8b3-d632a48408fd'

Observation By Id

Get Observation by ID.

METHOD GET 

[base url]/Observation/{id}

or 

[base url]/Observation?_id={id}

PARAMS

HEADERS

The Authorization token SHALL be obtained during Authentication and Authorization process. Goto Authentication and Authorization for further details.

Header Type Required/Optional Value
Authorization string required 'Bearer'

RESPONSES

Code Description Comment
200 OK The request was processed successfully
400 Bad request Invalid request parameters or FHIR operation outcome resource returned
401 Unauthorized This code indicates that the client request has not been completed because it lacks valid authentication credentials for the requested resource
404 no Route matched with those values The request was able to communicate with a given server, but the server could not find what was requested
500 Internal Server Error The server has encountered a situation it doesn't know how to handle

EXAMPLE:

curl --location --request GET 'https://demo.kodjin.com/fhir/Observation/c5137fa5-3216-b12a-cbbc-a0c6bef361g7' \
--header 'Authorization: Bearer fe1cd986-1ac7-4c26-b8b3-d632a48408fd'

Observation by patient and code

Get Observations for the specified patient and code search parameters

METHOD GET

GET [base url]/Observation?patient={Type/}[id]&code=http://loinc.org|72166-2

PARAMS

  • [base url] - FHIR base url
  • [id] - patient id
  • {Type/} - Type for the Reference. Example: Patient

HEADERS

The Authorization token SHALL be obtained during Authentication and Authorization process. Goto Authentication and Authorization for further details.

Header Type Required/Optional Value
Authorization string required 'Bearer'

RESPONSES

Code Description Comment
200 OK The request was processed successfully
400 Bad request Invalid request parameters or FHIR operation outcome resource returned
401 Unauthorized This code indicates that the client request has not been completed because it lacks valid authentication credentials for the requested resource
404 no Route matched with those values The request was able to communicate with a given server, but the server could not find what was requested
500 Internal Server Error The server has encountered a situation it doesn't know how to handle

EXAMPLE:

curl --location --request GET 'https://demo.kodjin.com/fhir/Observation?patient=Patient/fe1cd986-1ac7-4c26-b8b3-d632a48408fd&code=http://loinc.org|72166-2' \
--header 'Authorization: Bearer 1239b275-909e-4754-8f73-1e411fd6769e'