Category M45

Ankylosing spondylitis

Clinical Classification Guidelines

Inclusion Term

  • Rheumatoid arthritis of spine

Specific Diagnosis Codes

Ankylosing spondylitis of multiple sites in spine
M45.0
Ankylosing spondylitis of occipito-atlanto-axial region
M45.1
Ankylosing spondylitis of cervical region
M45.2
Ankylosing spondylitis of cervicothoracic region
M45.3
Ankylosing spondylitis of thoracic region
M45.4
Ankylosing spondylitis of thoracolumbar region
M45.5
Ankylosing spondylitis lumbar region
M45.6
Ankylosing spondylitis of lumbosacral region
M45.7
Ankylosing spondylitis sacral and sacrococcygeal region
M45.8
Ankylosing spondylitis of unspecified sites in spine
M45.9
Non-radiographic axial spondyloarthritis
M45.A
Non-radiographic axial spondyloarthritis of unspecified sites in spine
M45.A0
Non-radiographic axial spondyloarthritis of occipito-atlanto-axial region
M45.A1
Non-radiographic axial spondyloarthritis of cervical region
M45.A2
Non-radiographic axial spondyloarthritis of cervicothoracic region
M45.A3
Non-radiographic axial spondyloarthritis of thoracic region
M45.A4
Non-radiographic axial spondyloarthritis of thoracolumbar region
M45.A5
Non-radiographic axial spondyloarthritis of lumbar region
M45.A6
Non-radiographic axial spondyloarthritis of lumbosacral region
M45.A7
Non-radiographic axial spondyloarthritis of sacral and sacrococcygeal region
M45.A8
Non-radiographic axial spondyloarthritis of multiple sites in spine
M45.AB