Subluxation of interphalangeal joint of thmb, sequela

This code signifies a partial dislocation of the joint between the bones of an unspecified thumb, specifically when the injury's long-term effects or complications are being treated. It indicates that the initial subluxation has resolved, but the patient is experiencing residual symptoms or conditions directly related to that past injury.

Apply this code when documenting follow-up care for a patient who previously sustained a subluxation of the interphalangeal joint of the thumb, and is now presenting with chronic pain, stiffness, limited range of motion, or other persistent issues attributable to that old injury. This is appropriate for conditions like post-traumatic arthritis, chronic instability, or nerve impingement resulting from the original subluxation.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated (e.g., chronic pain, osteoarthritis).
• Ensure documentation clearly links the current condition to the previous interphalangeal joint subluxation of the thumb.
• Verify laterality (right, left, or unspecified) is accurately reflected in the full code, as this code specifies "unspecified thumb."