T49.4X6 - Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations T49.4 - Poisoning by, adverse effect of and underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations T49.4X - Poisoning by, adverse effect of and underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations T49.4X6 - Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations