Search patients by birth date with ge prefix is not working for years before 1990

[Saravanan Rathinakumar]

Hello, 

I am trying to search patients by birthdate with ge prefix but it returns the Unprocessable entity response if birthdate year before 1990.

https://fhir-open.sandboxcerner.com/dstu2/0b8a0111-e8e6-4c26-a91c-5069cbc6b1ca/Patient?birthdate=ge1977-01-01 - this is not working

https://fhir-open.sandboxcerner.com/dstu2/0b8a0111-e8e6-4c26-a91c-5069cbc6b1ca/Patient?birthdate=ge1990-01-01 - this works

and sometimes with le prefix also not working properly

[Max Philips (Cerner)]

Hi,

I took a look in our logs to see what was going on.  The 422 is returning because a search by birthdate greater than or equal to 1977-01-01 qualifies too many patients.  It is not related to the prefixes.

Could you add another search parameter to your queries to narrow down the result set?  Or specify a closed date range instead of an open date range?  Both of these approaches should reduce the likelihood of getting too many qualified results.

I will log a task for us to improve the error messaging in this scenario.

Thanks,

Max (Cerner)

[Saravanan Rathinakumar]

Hello Max,

Thanks for your answer. I will use an additional parameter to narrow down the results. Hope it will be resolved in coming future. 

- Thanks,

Saravanan