Unspecified fracture of shaft of left ulna, sequela

This code indicates a long-term complication or late effect stemming from an unspecified fracture of the shaft of the left ulna. It signifies that the initial injury has healed, but the patient is now experiencing a residual condition directly attributable to that past fracture.

Apply this code when documenting a current condition that is a direct consequence of a previously healed, unspecified fracture of the left ulnar shaft. Examples include chronic pain, nonunion, malunion, or functional impairment that developed after the acute phase of the fracture. This code is used for follow-up encounters addressing these sequelae.

• Always sequence this code after the code for the specific sequela being treated (e.g., M84.422A for malunion of left ulna).
• Ensure documentation clearly links the current condition to the past left ulnar shaft fracture.
• Do not use this code for the initial treatment of an acute fracture or for routine follow-up without a documented complication.