Disp fx of shaft of first MC bone, unsp hand, sequela

This code signifies a past injury involving a break in the main body (shaft) of the first metacarpal bone (thumb bone) that was not properly aligned during healing. The "sequela" designation indicates that this code is used to report a current condition or complication resulting from the original fracture, rather than the acute injury itself.

This code is appropriate when a patient presents with a long-term issue directly attributable to a previously sustained and healed, but displaced, fracture of the first metacarpal shaft. Examples include chronic pain, limited range of motion, or deformity at the fracture site, occurring after the initial healing period. It should not be used for the initial treatment of the acute fracture.

• Always assign an additional code(s) to describe the specific sequela (e.g., chronic pain, malunion, nonunion) being treated.
• Ensure documentation clearly links the current condition to the old, displaced fracture of the first metacarpal shaft.
• This code is for an unspecified hand; if the laterality is known, a more specific code should be used if available.