# P21 validation gap: incorrect NCI Term Code not flagged

**URL:** <https://forum.certara.com/t/p21-validation-gap-incorrect-nci-term-code-not-flagged/4398>\
**Category:** Support\
**Created:** [May 28, 2026, 5:23pm UTC](https://forum.certara.com/t/p21-validation-gap-incorrect-nci-term-code-not-flagged/4398 "2026-05-28T17:23:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jose\_Gonzalez](https://avatars.discourse-cdn.com/v4/letter/j/6de8d8/32.png) [@Jose\_Gonzalez](https://forum.certara.com/u/Jose_Gonzalez)\
**Post date:** [May 28, 2026, 5:23pm UTC](https://forum.certara.com/t/p21-validation-gap-incorrect-nci-term-code-not-flagged/4398/1 "2026-05-28T17:23:56Z")

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Hello all,

Hello Team, as you can see p21 report is trigger the missing NCI codelist code of Completion Status as I was expected checking the DD0031 issue.

But I am wondering why p21 report don’t trigger the wrong code for the NCI term code NOT DONE, it should be C49484, and in the codelist tab inthe SDTM specs has been written C66789 (that it is the NCI codelist code of completion status).

Because this gap,

We need to check all the NCI codelist term manually in the codelist tab in the SDTM specs?

Thanks

Jose.

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**Author:** ![Sergiy](https://sea1.discourse-cdn.com/certara/user_avatar/forum.certara.com/sergiy/32/2553_2.png) [@Sergiy](https://forum.certara.com/u/Sergiy)\
**Post date:** [May 29, 2026, 10:36pm UTC](https://forum.certara.com/t/p21-validation-gap-incorrect-nci-term-code-not-flagged/4398/2 "2026-05-29T22:36:07Z")

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Hi Jose,

In case of wrong NCI code for term, you expect to get

| DD0034 | Unknown NCI Code value for Term in Codelist ‘ND’ |
| --- | --- |

message.

Your validation report and define.xml are not available in your post for more detailed diagnostics.

Kind Regards,  
Sergiy