M96: Postprocedural musculoskeletal disorders, not elsewhere classified

M96.2: Postradiation kyphosis

If you look at the spine from the side, you can see that it usually is not quite straight. The spine is alternately curving inwards and outwards. The cervical spine and the lumbar spine curve forwards. The thoracic spine and sacrum curve outwards.

The spine can be curved backwards too much in one or more sections. If the spine is too curved, it may cause back pain.