ICD-10-CM > M00-M99 > M40-M43 > M40 > M40.1 M40.1 Other secondary kyphosis Non-Billable/Non-Specific Codes M40.10Other secondary kyphosis, site unspecifiedM40.12Other secondary kyphosis, cervical regionM40.13Other secondary kyphosis, cervicothoracic regionM40.14Other secondary kyphosis, thoracic regionM40.15Other secondary kyphosis, thoracolumbar region