Oth fracture of left ilium, subs for fx w nonunion

This code indicates a fracture of the left ilium that is not healing properly, as documented during a follow-up visit. Nonunion signifies that the bone fragments have failed to unite after a sufficient healing period, requiring continued medical management.

Assign this code for subsequent encounters when a patient is receiving active treatment for a previously diagnosed left iliac fracture that has been identified as a nonunion. This includes visits for ongoing evaluation, management of complications related to the nonunion, or preparation for further surgical intervention.

• Ensure documentation clearly specifies "nonunion" for the left ilium fracture.
• This code is for subsequent encounters; an initial encounter code would be used for the first diagnosis.
• Always sequence this code after any applicable external cause codes, if known and documented.