Dislocation of metacarpophalangeal joint of thmb, sequela

This code signifies a chronic or residual issue stemming from a prior dislocation of the metacarpophalangeal (MCP) joint of an unspecified thumb. It indicates that the initial injury has resolved, but the patient continues to experience symptoms or functional limitations directly attributable to the past dislocation. This is not for an acute dislocation.

Apply this code when documentation clearly states a history of thumb MCP joint dislocation and current symptoms (e.g., pain, instability, reduced range of motion, arthritis) are sequelae of that past injury. This is appropriate for follow-up visits addressing long-term complications or persistent issues after the initial acute phase has passed.

• Ensure the documentation explicitly links current symptoms to a prior dislocation, not an acute event.
• Do not use for acute dislocations; those require codes from the S63.11- series without the "S" seventh character.
• Always sequence this code after the primary diagnosis for the current manifestation (e.g., M19.041 for primary osteoarthritis of the thumb, if applicable).