Row to column Not column to row - Pivot 1 row to multiple columns using T SQL

Question

I have data in a table that I want to pivot from 1 row to multiple columns. I only want the columns with dx to pivot if there is a value in them. Thanks.

This is a sample of what I have:

NBR	dx	dx2	dx3
11	j2		e4

This is what I want:

NBR	Diag
11	j2
11	e4