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HomeICD-10 CodesM18
ICD-10-CM
Non-billable

M18

Classification
Category:Diseases of the musculoskeletal system and connective tissue
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Coding Guidance
M18 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail.
Excludes 2
From M00-M99
Use Additional Code

More Specific Codes

M18.0
Bilateral primary osteoarthritis of first carpometacarpal joints
M18.1
Unilateral primary osteoarthritis of first carpometacarpal joint
M18.2
Bilateral post-traumatic osteoarthritis of first carpometacarpal joints
M18.3
Unilateral post-traumatic osteoarthritis of first carpometacarpal joint
M18.4
Other bilateral secondary osteoarthritis of first carpometacarpal joints
M18.5
Other unilateral secondary osteoarthritis of first carpometacarpal joint
M18.9
Osteoarthritis of first carpometacarpal joint, unspecified

External Resources

2025 ICD-10 guidelines from CMS.gov