CMS recently released the 2017 ICD-10-PCS code updates and guidelines, which include changes to certain root operations. Of the updates, the most notable modifications are the addition of root operation Perfusion, and edits to the current definitions of Control and Creation.
Q: A patient fractured all metatarsals last year and had open reduction and internal fixation. The patient now has a nonunion of the fracture sites and is going back to the OR for an amputation. What would be the appropriate ICD-10-CM seventh character to report?