M99 - Biomechanical lesions, not elsewhere classified
M99.0 - Segmental and somatic dysfunction
M99.00 - Segmental and somatic dysfunction of head region
M99.01 - Segmental and somatic dysfunction of cervical region
M99.02 - Segmental and somatic dysfunction of thoracic region
M99.03 - Segmental and somatic dysfunction of lumbar region
M99.04 - Segmental and somatic dysfunction of sacral region
M99.05 - Segmental and somatic dysfunction of pelvic region
M99.06 - Segmental and somatic dysfunction of lower extremity
M99.07 - Segmental and somatic dysfunction of upper extremity
M99.08 - Segmental and somatic dysfunction of rib cage
M99.09 - Segmental and somatic dysfunction of abdomen and other regions