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 | |||||||
| M40-M43 | Deforming dorsopathies |
| M45-M49 | Spondylopathies |
| M50-M54 | Other dorsopathies |
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