I'd like to fix this without editing the CSV file. This is my mod, but I can't figure out if it's possible to add the information I need inside my mod?
I did integration with the old version of NEI, everything I did works fine with your version, but now I want to add support for your version and remove this small flaw in the screenshot.
(This is a private mod, there is no point in adding it to the general CSV)

Use IMC.

GoodGenerators, or https://github.com/Roadhog360/Et-Futurum-Requiem/blob/master/src/main/java/ganymedes01/etfuturum/compat/nei/IMCSenderGTNH.java are two examples