Leviticus 13:20

The priest is to examine it, and if it appears to be more than skin deep and the hair in it has turned white, the priest shall pronounce him unclean. It is an infectious skin disease that has broken out where the boil was.

(New International Version)

and the priest shall look, and behold, if it appears to be lower than the skin, and the hair on it has turned white, then the priest shall pronounce him unclean; it is the infection of leprosy, it has broken out in the boil.

(New American Standard Bible)

And if, when the priest seeth it, behold, it be in sight lower than the skin, and the hair thereof be turned white; the priest shall pronounce him unclean: it is a plague of leprosy broken out of the boil.

(King James Version)