Unil post-trauma osteoarth of 1st carpometacarp jt, r hand

This diagnosis code signifies degenerative joint disease affecting the base of the right thumb, specifically the joint between the trapezium bone and the first metacarpal. This osteoarthritis is a direct consequence of a prior injury to the joint.

Use this code when documentation clearly states post-traumatic osteoarthritis of the right first carpometacarpal joint. This is appropriate for patients presenting with pain, stiffness, and reduced function in the right thumb following a history of trauma to that joint.

• Ensure documentation specifies "post-traumatic" etiology; otherwise, a different osteoarthritis code may be more appropriate.
• Verify laterality (right hand) is clearly documented.
• Do not confuse with primary osteoarthritis or osteoarthritis due to other specified causes.