# {{page-title}} (Transaction ERESULT-11)


## General
No all Luxembourgish practitioner/precriber support eResult, so in order to know if a result must be sent trough eResult or by another way, this service must be called. See Functional specifications

## Input
**For Security reason, URL (Base and Query parameter), Authentification mechanism are supplied privately documentation supplied by Agence eSanté to each integrator**

This service has no body.


## Output
### Success
In case of success, the API will returned:
- A HTTP Code 204

with an empty body (Which is why HTTP code is 204 and not 200)

### Error
In case of error, an OperationOutcome will be returned. 
See {{pagelink:Home/Error-Handling.page.md}} for more information.

Main errors related to this service are:

| HTTP Code | eResult error code | Description |
| ------------ | ----------- | ------------- |
| 400 | <Empty> | If no CNS code is supplied. An error message like this one may be returned "Query Param recipient.identifier must be supplied for /$checkRegistration" |
| 422 | PRO_001 | CNS code supplied is invalid |
| 404 | ERESULT_0101 | CNS code supplied is valid but the Practitioner doesn't support eResult. Result must be sent in another way |