Chapter XIII

Diseases of the musculoskeletal system and connective tissue
(M00-M99)

Dorsopathies
(M40-M54)

The following supplementary subclassification to indicate the site of involvement is provided for optional use with appropriate categories in the block on dorsopathies, except categories M50 and M51; see also note at the beginning of this chapter.
0 Multiple sites in spine
1 Occipito-atlanto-axial region
2 Cervical region
3 Cervicothoracic region
4 Thoracic region
5 Thoracolumbar region
6 Lumbar region
7 Lumbosacral region
8 Sacral and sacrococcygeal region
9 Site unspecified

Spondylopathies
(M45-M49)

M45 Ankylosing spondylitis
[See site code before M40]
Rheumatoid arthritis of spine
Excludes: arthropathy in Reiter's disease ( M02.3 )
Behçet's disease ( M35.2 )
juvenile (ankylosing) spondylitis ( M08.1 )

M46 Other inflammatory spondylopathies
[See site code before M40]
M46.0 Spinal enthesopathy
Disorder of ligamentous or muscular attachments of spine
M46.1 Sacroiliitis, not elsewhere classified
M46.2 Osteomyelitis of vertebra
M46.3 Infection of intervertebral disc (pyogenic)
Use additional code (B95-B97), if desired, to identify infectious agent.
M46.4 Discitis, unspecified
M46.5 Other infective spondylopathies
M46.8 Other specified inflammatory spondylopathies
M46.9 Inflammatory spondylopathy, unspecified

M47 Spondylosis
[See site code before M40]
Includes: arthrosis or osteoarthritis of spine
degeneration of facet joints
M47.0+ Anterior spinal and vertebral artery compression syndromes ( G99.2* )
M47.1 Other spondylosis with myelopathy
Spondylogenic compression of spinal cord+ ( G99.2* )
Excludes: vertebral subluxation ( M43.3-M43.5 )
M47.2 Other spondylosis with radiculopathy
M47.8 Other spondylosis
Cervical spondylosis
Lumbosacral spondylosis
Thoracic spondylosis
}
}
}
without myelopathy or radiculopathy
M47.9 Spondylosis, unspecified

M48 Other spondylopathies
[See site code before M40]
M48.0 Spinal stenosis
Caudal stenosis
M48.1 Ankylosing hyperostosis [Forestier]
Diffuse idiopathic skeletal hyperostosis [DISH]
M48.2 Kissing spine
M48.3 Traumatic spondylopathy
M48.4 Fatigue fracture of vertebra
Stress fracture of vertebra
M48.5 Collapsed vertebra, not elsewhere classified
Collapsed vertebra NOS
Wedging of vertebra NOS
Excludes: collapsed vertebra in osteoporosis ( M80.- )
current injury - see injury of spine by body region.
M48.8 Other specified spondylopathies
Ossification of posterior longitudinal ligament
M48.9 Spondylopathy, unspecified

M49* Spondylopathies in diseases classified elsewhere
[See site code before M40]
Excludes: psoriatic and enteropathic arthropathies ( M07.-* , M09.-* )
M49.0* Tuberculosis of spine ( A18.0+ )
Pott's curvature
M49.1* Brucella spondylitis ( A23.-+ )
M49.2* Enterobacterial spondylitis ( A01-A04+ )
M49.3* Spondylopathy in other infectious and parasitic diseases classified elsewhere
Excludes: neuropathic spondylopathy in tabes dorsalis ( M49.4* )
M49.4* Neuropathic spondylopathy
Neuropathic spondylopathy in:
· syringomyelia and syringobulbia ( G95.0+ )
· tabes dorsalis ( A52.1+ )
M49.5* Collapsed vertebra in diseases classified elsewhere
Metastatic fracture of vertebra ( C79.5+ )
M49.8* Spondylopathy in other diseases classified elsewhere


Processed on 29.10.2004 M.S. Source: World Health Organization © Copyright WHO/DIMDI 1994/2005