Before revision: In this paper, we address computation of the degree \rm deg Det A of Dieudonn\'e determinant \rm Det A of \[ A = k=1^m A_k x_k t^{c_k}, \] where A_k are n \times n matrices over a field K, x_k are noncommutative variables, t is a variable commuting  x_k, c_k are integers, and the degree is considered for t.
After revision: In this paper, we address computation of the degree \rm deg Det A of Dieudonn\'e determinant \rm Det A of \[ A = k=1^m A_k x_k t^{c_k}, \] where A_k are n \times n matrices over a field K, x_k are noncommutative variables, t is a variable commuting with x_k, c_k are integers, and the degree is considered for t.