| M99.00 | Segmental and somatic dysfunction of head region | BILLABLE CODE |
| M99.01 | Segmental and somatic dysfunction of cervical region | BILLABLE CODE |
| M99.02 | Segmental and somatic dysfunction of thoracic region | BILLABLE CODE |
| M99.03 | Segmental and somatic dysfunction of lumbar region | BILLABLE CODE |
| M99.04 | Segmental and somatic dysfunction of sacral region | BILLABLE CODE |
| M99.05 | Segmental and somatic dysfunction of pelvic region | BILLABLE CODE |
| M99.06 | Segmental and somatic dysfunction of lower extremity | BILLABLE CODE |
| M99.07 | Segmental and somatic dysfunction of upper extremity | BILLABLE CODE |
| M99.08 | Segmental and somatic dysfunction of rib cage | BILLABLE CODE |
| M99.09 | Segmental and somatic dysfunction of abdomen and other regions | BILLABLE CODE |
