Ankylosing spondylitis M45

The ICD10 code for the diagnosis "Ankylosing spondylitis" is "M45". M45 is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.

  • M45 should not be used for reimbursement purposes. Please select a more specific diagnosis below.
  • The 2019 edition of ICD-10-CM M45 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of M45 - other international versions of ICD-10 M45 may differ.
Applicable To:
  • Rheumatoid arthritis of spine
Type 1 Excludes:
  • arthropathy in Reiter's disease (M02.3-)
  • juvenile (ankylosing) spondylitis (M08.1)
Type 2 Excludes:
  • Beh├žet's disease (M35.2)

Codes: = Billable

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