The 1st CMC (carpometacarpal) joint is a specialized saddle-shaped joint at the base of the thumb. The trapezium carpal bone of the wrist and the first metacarpal bone of the hand form the 1st CMC or thumb basal joint.
Carpometacarpal osteoarthritis is a degenerative condition of the hand that causes pain, stiffness and weakness. It is the second most common site of degenerative disease in the hand after arthritis of the distal interphalangeal joints. 1.
According to Coding Clinic: “Assign code M16. 0—Bilateral primary osteoarthritis of hip for degenerative changes of hips”. Coding Clinic's rationale is, “ICD-10- CM's Alphabetic Index under “Degeneration, joint disease” instructs “see Osteoarthritis.”
The carpometacarpal (CMC) joints of the hand form the articulation between the distal row of carpal bones and the bases of the five metacarpal bones. These joints are positioned at the extreme proximal region of the hand (see Figs. 7.3 and 7.4).
The thumb carpometacarpal (CMC) joint, a biconcave-convex saddle joint, consists of the articulation between the first metacarpal of the thumb and the trapezium carpal bone. Other significant articulations of the trapezial bone are the scaphoid and trapezoid carpal bones and the second metacarpal bone.
The first carpometacarpal (trapeziometacarpal) joints are a frequent site of osteoarthritis in postmenopausal women. This osteoarthritis, which is typically bilateral both clinically and roentgenographically, may be mistaken for tenosynovitis unless its characteristic features are recognized.
A: OA, or degenerative joint disease, is identified in categories M15-M19 of the ICD-10-CM manual. This is the most common type of arthritis in the elderly. If the arthritis is ever in the spine, refer to category M47, Spondylosis.
36 Other intervertebral disc degeneration, lumbar region.
Unspecified osteoarthritis, unspecified site M19. 90 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM M19. 90 became effective on October 1, 2021.
The carpometacarpal (CMC) joints are synovial joints formed by articulations of the distal carpal row and the metacarpal bones.