Oth disp fx of base of first MC bone, left hand, sequela

This code signifies a past injury involving a displaced fracture at the base of the first metacarpal bone (thumb) in the left hand, where the patient is now experiencing a residual condition or complication directly related to that previous fracture. This could include ongoing pain, limited range of motion, malunion, or nonunion.

Apply this code when documenting a patient presenting with a current problem or sequela stemming from a previously healed or treated displaced fracture of the left thumb's metacarpal base. This is appropriate for follow-up visits addressing long-term effects of the initial injury, rather than the acute fracture itself.

• Always use an additional code to specify the nature of the sequela (e.g., M25.542 for pain in left hand, M96.0 for pseudarthrosis after fusion).
• Ensure documentation clearly links the current condition to the prior displaced fracture of the left first metacarpal base.
• Do not use this code for the initial treatment of an acute fracture; it is exclusively for sequelae.