ICD-10-CM › M00-M99 › M15-M19 › M18 Osteoarthritis of first... › M18.0
Bilateral primary osteoarthritis of first carpometacarpal joints
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Bilateral primary osteoarthritis of first carpometacarpal joints
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from the M15-M19 section Osteoarthritis (M15-M19)
Excludes2 - not included here
- osteoarthritis of spine (M47.-)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Arthrosis
- Osteoarthrosis
- Pachydermoperiostosis
- Bamberger-Marie disease
- Marie-Bamberger disease
- Arthropathy > osteopulmonary
- Osteoarthropathy > foot joint
- Osteoarthropathy > hand joint
- Arthritis, arthritic > atrophic
- Arthritis, arthritic > deformans
- Osteoarthropathy > multiple site
- Arthritis, arthritic > degenerative
- Osteoarthropathy > specified joint NEC
- Disease, diseased > joint > degenerative
- Disease, diseased > joint > hypertrophic
- Arthritis, arthritic > senile or senescent
- Degeneration, degenerative > joint disease
- Osteoarthropathy > pulmonary > hypertrophic
- Arthritis, arthritic > meaning osteoarthritis
- Osteoarthritis > wrist > first carpometacarpal joint
- Osteoarthritis > hand joint > first carpometacarpal joint > primary
- Osteoarthritis > primary > hand joint > first carpometacarpal joint > bilateral
Codes in the same group
| Code | Description | Status |
|---|---|---|
| M18.1 | Unilateral primary osteoarthritis of first carpometacarpal joint | Not billable |
| M18.2 | Bilateral post-traumatic osteoarthritis of first carpometacarpal joints | Valid |
| M18.3 | Unilateral post-traumatic osteoarthritis of first carpometacarpal joint | Not billable |
| M18.4 | Other bilateral secondary osteoarthritis of first carpometacarpal joints | Valid |
| M18.5 | Other unilateral secondary osteoarthritis of first carpometacarpal joint | Not billable |
| M18.9 | Osteoarthritis of first carpometacarpal joint, unspecified | Valid |