Dislocation of carpometacarpal joint of right thumb, sequela

This code signifies a long-term complication or late effect stemming from a previous dislocation of the carpometacarpal (CMC) joint of the right thumb. These sequelae can include chronic pain, instability, degenerative changes, or functional limitations that persist after the initial injury has healed.

Apply this code when documenting conditions directly resulting from a past dislocation of the right thumb's CMC joint, and the acute phase of the original injury has passed. This is appropriate for patients presenting with ongoing issues such as post-traumatic arthritis, chronic subluxation, or persistent weakness related to the prior dislocation.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., M19.041 for primary osteoarthritis of the right thumb).
• Ensure documentation clearly links the current condition to the previous right thumb CMC joint dislocation.
• The "S" seventh character indicates sequela and should be used for complications or conditions arising after the acute phase of the injury.