ICD-10-CM > M00-M99 > M20-M25 > M20 > M20.0 > M20.09 M20.09 Other deformity of finger(s) Non-Billable/Non-Specific Codes M20.091Other deformity of right finger(s)M20.092Other deformity of left finger(s)M20.099Other deformity of finger(s), unspecified finger(s)