Hi aspirant

hope you are doing absolutely fine

Generally  there is no need to worry about it. Codes are usually given to know certain number of candidates appearing for NEET Entrance exam. For instance, number of candidates appearing in NEET who are also pursuing degree, or droppers, et cetera

There is no such major issue to. It will not be even checked at the time of counselling and admission. For more, you can check this -

https://medicine.careers360.com/articles/neet-qualification-codes

all the best

hope it helps