## CDSS Request Exceptions ### General server exceptions Following server exceptions are possible: | Exception | Code | Description | |------------------------------|------|--------------------------------------------------------------| | InvalidRequestException | 400 | Referral Request object has invalid or unparsable parameters | | UnprocessableEntityException | 422 | Referral Request object didn't validate with profile | | InternalErrorException | 500 | Any unexpected internal error | ### Rule exceptions If a certain rule cannot be executed an observation without value will be returned. In the observation.dataAbsentReason field will be an error code. ### *** « {{pagelink:EviPrevIt/CDSSRequestOutput}}