eMedCodes logo

M45 - Ankylosing spondylitis


The ICD 10 Code for Ankylosing spondylitis is listed as M45.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: M45
Description: Ankylosing spondylitis
  • Rheumatoid arthritis of spine
  • Excludes1: arthropathy in Reiter's disease (M02.3-)
  • juvenile (ankylosing) spondylitis (M08.1)
  • Excludes2: Beh
Chapter Diseases of the musculoskeletal system and connective tissue (M00-M99)
ICD-10-CM Children (deeper level / typically more specific) of M45:
M45.0 - Ankylosing spondylitis of multiple sites in spine
M45.1 - Ankylosing spondylitis of occipito-atlanto-axial region
M45.2 - Ankylosing spondylitis of cervical region
M45.3 - Ankylosing spondylitis of cervicothoracic region
M45.4 - Ankylosing spondylitis of thoracic region
M45.5 - Ankylosing spondylitis of thoracolumbar region
M45.6 - Ankylosing spondylitis lumbar region
M45.7 - Ankylosing spondylitis of lumbosacral region
M45.8 - Ankylosing spondylitis sacral and sacrococcygeal region
M45.9 - Ankylosing spondylitis of unspecified sites in spine