Osteoarthritis of first carpometacarpal joint M18

The ICD10 code for the diagnosis "Osteoarthritis of first carpometacarpal joint" is "M18". M18 is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.

  • M18 should not be used for reimbursement purposes. Please select a more specific diagnosis below.
  • The 2019 edition of ICD-10-CM M18 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of M18 - other international versions of ICD-10 M18 may differ.

Codes: = Billable

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.