a patient had a left talinavicular joint fusion with autologous iliac crest graft in June and it showed good bone healing in July. the patient now shows TN joint nonunion due to walking on her foot. How would I interpret the 7th character because it was healing great until the patient had to walk on it do to lifestyle. So is this Sequela (complication or condition that arises as a direct result of a condition) or is K subsequent fracture with a nonunion?