With regard to visitor visa

[harish_1955]

I recently got my B1/B2 visa corrected with regard to my validity.In the previous visa, the number next to the expiration date was 1001 but in the new visa it says 0101.
Is it a mistake and if so should i send it back for correction? and what is that number called since the correction policy form does not mention anything with regard to the correction of the number.

Kindly advice.

[immihelp]

As long as the expiration date is correct, nothing to worry about.