M18.2 – Bilateral post-traumatic osteoarthritis of first carpometacarpal joints
ICD-10-CM 2027 diagnosis code · Osteoarthritis
ICD-10-CM code
M18.2
- Code
M18.2(claims format:M182)- Description
- Bilateral post-traumatic osteoarthritis of first carpometacarpal joints
- Short description
- Bi post-trauma osteoarth of first carpometacarp joints
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M15-M19 Osteoarthritis
- Parent codes
- M18
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block M15-M19
Excludes2 (not included here):
- osteoarthritis of spine (M47.-)
Index terms for M18.2
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in M18
- M18.0 – Bilateral primary osteoarthritis of first carpometacarpal jointsBillable
- M18.1 – Unilateral primary osteoarthritis of first carpometacarpal jointHeader
- M18.3 – Unilateral post-traumatic osteoarthritis of first carpometacarpal jointHeader
- M18.4 – Other bilateral secondary osteoarthritis of first carpometacarpal jointsBillable
- M18.5 – Other unilateral secondary osteoarthritis of first carpometacarpal jointHeader
- M18.9 – Osteoarthritis of first carpometacarpal joint, unspecifiedBillable
Frequently asked questions
What is ICD-10 code M18.2?
M18.2 is the ICD-10-CM code for bilateral post-traumatic osteoarthritis of first carpometacarpal joints, in the block M15-M19 (Osteoarthritis).
Is M18.2 a billable code?
Yes. M18.2 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does M18.2 belong to?
It belongs to category M18 – Osteoarthritis of first carpometacarpal joint.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.