M99 - Biomechanical lesions, not elsewhere classified
M99.3 - Osseous stenosis of neural canal
M99.30 - Osseous stenosis of neural canal of head region
M99.31 - Osseous stenosis of neural canal of cervical region
M99.32 - Osseous stenosis of neural canal of thoracic region
M99.33 - Osseous stenosis of neural canal of lumbar region
M99.34 - Osseous stenosis of neural canal of sacral region
M99.35 - Osseous stenosis of neural canal of pelvic region
M99.36 - Osseous stenosis of neural canal of lower extremity
M99.37 - Osseous stenosis of neural canal of upper extremity
M99.38 - Osseous stenosis of neural canal of rib cage
M99.39 - Osseous stenosis of neural canal of abdomen and other regions