Nondisp segmental fx shaft of radius, unsp arm, sequela

This code describes a long-term complication or late effect stemming from a previous nondisplaced fracture involving a segment of the radial shaft. The injury occurred in an unspecified arm, and the patient is now presenting for treatment of a sequela related to that prior fracture.

This code is appropriate when a patient is seen for conditions directly resulting from a healed or resolving nondisplaced segmental radial shaft fracture, such as chronic pain, nonunion, malunion, or functional limitations. It should be used after the acute phase of the original injury has passed.

• Always sequence this code after the code for the specific sequela being treated (e.g., M84.4x for nonunion).
• Ensure documentation clearly links the current condition to the previous nondisplaced segmental radial shaft fracture.
• Verify that the "S" seventh character is appropriate for sequela, indicating a late effect of the injury.