M21 - Other acquired deformities of limbs
M21.6 - Other acquired deformities of foot
Excludes 2:
-deformities of toe (acquired) M20.1-M20.6)
M21.6X - Other acquired deformities of foot
M21.6X1 - Other acquired deformities of right foot
M21.6X2 - Other acquired deformities of left foot
M21.6X9 - Other acquired deformities of unspecified foot