M18 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Osteoarthritis of first carpometacarpal joint.
Loading children...
loading versions...
Bilateral primary osteoarthritis of first carpometacarpal joints
Unilateral primary osteoarthritis of first carpometacarpal joint
Bilateral post-traumatic osteoarthritis of first carpometacarpal joints
Unilateral post-traumatic osteoarthritis of first carpometacarpal joint
Other bilateral secondary osteoarthritis of first carpometacarpal joints
Other unilateral secondary osteoarthritis of first carpometacarpal joint
Osteoarthritis of first carpometacarpal joint, unspecified
No changes
No changes
No changes
No changes
No changes
No changes
No changes
No changes
No changes
No changes
New code