Dislocation of interphalangeal joint of thmb, sequela

This code signifies a long-term complication or residual effect stemming from a prior dislocation of the interphalangeal (IP) joint of an unspecified thumb. These sequelae can include chronic pain, stiffness, instability, or degenerative changes that persist after the initial injury has healed. It indicates that the current patient encounter is for managing these lasting consequences rather than the acute dislocation itself.

Apply this code when documenting follow-up care for a patient experiencing persistent issues directly attributable to a previously sustained IP joint dislocation of the thumb. This includes encounters for physical therapy, pain management, or surgical intervention aimed at addressing the chronic effects. It should be used when the acute phase of the injury has passed, and the current condition is a direct result of the original trauma.

• Always link this sequela code to an external cause code (V00-Y99) if the original injury's cause is known and relevant.
• Ensure documentation clearly states the condition is a "sequela" or "late effect" of a prior dislocation, not an acute event.
• Do not use this code for acute or subacute dislocations; those require codes from the S63.12- series without the "S" seventh character.