## {{page-title}}

In case of error occurence, except explicitly stated, ePrescription and eResult services will returned a FHIR  OperationOutcome structure.


OperationOutcome returned will comform the following structure:

| Attribute | Value | Comment |
| ------------ | ----------- | ------------- |
| resourceType | OperationOutcome |  |
| issue[ ].severity | error | Fixed value |
| issue[ ].code |  | https://www.hl7.org/fhir/r4/valueset-issue-type.html |
| issue[ ].details.coding[ ].system |  | System associated to the code below |
| issue[ ].details.coding[ ].code | Business Error Code | Code describing  the error.  This code identifies uniquely the error that occurs |
| issue[ ].details.coding[ ].display |  | Display message associated to the error code above. It's fixed. It doesn't contain contextual information |
| issue[ ].details.text | Error description | It contains textual description of the error and contextual information |
| issue[ ].diagnostic | Error description | It contains textual description of the error and contextual information. Use this description if there's no "issue[ ].details.text" node|

The structure may also contain additional information (like line and column of the incorrect data). It can use to help diagnostic but the format and the presence are not guaranted in future version.


Note that depending of the error, this OperationOutcome may contain One or more "issue"

See full examples with [One issue](https://simplifier.net/eprescriptionlux/operationoutcome-oneissue/~json), [Several issues](https://simplifier.net/eprescriptionlux/operationoutcome-severalissues/~json)