Disp fx of prox third of navic bone of unsp wrist, sequela

This code signifies a past injury involving a displaced fracture of the scaphoid bone in the wrist, specifically affecting its proximal third. The term "sequela" indicates that this code is used to report the late effects or complications of the original fracture, rather than the acute injury itself. This could include ongoing pain, limited range of motion, nonunion, or malunion resulting from the initial fracture.

Apply this code when documenting the long-term consequences or residual conditions stemming from a previously displaced fracture of the proximal scaphoid. This is appropriate for follow-up visits where the patient is being treated for issues directly related to the old fracture, such as chronic pain, arthritis, or functional impairment. Do not use this code for the initial treatment of the acute fracture.

• Always use this code as a secondary diagnosis, following a code for the specific sequela being treated (e.g., M19.031 for primary osteoarthritis of the wrist).
• Ensure documentation clearly states the fracture is a past event and the current encounter addresses its late effects.
• Verify laterality (unspecified wrist) is appropriate; if left or right is known, a more specific code should be used.