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ICDMine.com › Browse ICD-10-CM Codes › Ch. 13: Diseases of the musculoskeletal system and connective tissue (M00-M99) › Spondylopathies (M45-M49) › M45

M45Ankylosing spondylitis

ICD-10-CM category (non-billable header) code — part of Spondylopathies (M45-M49)

Code Details

Billable	No — use a more specific child code
Chapter	Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99)
Section	Spondylopathies (M45-M49)

Coding Notes

Inclusion Terms

Rheumatoid arthritis of spine

Excludes1 (never code both together)

arthropathy in Reiter's disease (M02.3-)
juvenile (ankylosing) spondylitis (M08.1)

Excludes2 (not part of this condition — may code both)

Behçet's disease (M35.2)

Subcategories (11)

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
M45.A Non-radiographic axial spondyloarthritis

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