# Regarding -99 code for not applicable option

**URL:** <https://forum.dimagi.com/t/regarding-99-code-for-not-applicable-option/1521>\
**Category:** Users\
**Created:** [October 1, 2013, 3:44pm UTC](https://forum.dimagi.com/t/regarding-99-code-for-not-applicable-option/1521 "2013-10-01T15:44:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Clayton\_Sims](https://dimagi.b-cdn.net/user_avatar/forum.dimagi.com/clayton_sims/32/496_2.png) [@Clayton\_Sims](https://forum.dimagi.com/u/Clayton_Sims)\
**Post date:** [October 1, 2013, 3:44pm UTC](https://forum.dimagi.com/t/regarding-99-code-for-not-applicable-option/1521/1 "2013-10-01T15:44:05Z")

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Do you have Validation turned on for that particular question?

-Clayton

> **···**
>
> On Sun, Sep 29, 2013 at 1:19 AM, Dej Krishna Shrestha \< d.shrestha@mira.org.np\> wrote:
> 
> > We have been developing a research database in commcare program. We had  
> > decided to put -99 code for not applicable option in backend. After setting  
> > -99 in default data value then commcare says can't pass invalid value. So  
> > please suggest me to solve the problem.  
> > Regards  
> > Dej
> > 
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