ICD-10-CM · Chapter 13 · M00-M99
M99 Biomechanical lesions, not elsewhere classified
Notes
- This category should not be used if the condition can be classified elsewhere.
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| M99..0 | Segmental and somatic dysfunction | No |
| M99..00 | Segmental and somatic dysfunction of head region | Yes |
| M99..01 | Segmental and somatic dysfunction of cervical region | Yes |
| M99..02 | Segmental and somatic dysfunction of thoracic region | Yes |
| M99..03 | Segmental and somatic dysfunction of lumbar region | Yes |
| M99..04 | Segmental and somatic dysfunction of sacral region | Yes |
| M99..05 | Segmental and somatic dysfunction of pelvic region | Yes |
| M99..06 | Segmental and somatic dysfunction of lower extremity | Yes |
| M99..07 | Segmental and somatic dysfunction of upper extremity | Yes |
| M99..08 | Segmental and somatic dysfunction of rib cage | Yes |
| M99..09 | Segmental and somatic dysfunction of abdomen and other regions | Yes |
| M99..1 | Subluxation complex (vertebral) | No |
| M99..10 | Subluxation complex (vertebral) of head region | Yes |
| M99..11 | Subluxation complex (vertebral) of cervical region | Yes |
| M99..12 | Subluxation complex (vertebral) of thoracic region | Yes |
| M99..13 | Subluxation complex (vertebral) of lumbar region | Yes |
| M99..14 | Subluxation complex (vertebral) of sacral region | Yes |
| M99..15 | Subluxation complex (vertebral) of pelvic region | Yes |
| M99..16 | Subluxation complex (vertebral) of lower extremity | Yes |
| M99..17 | Subluxation complex (vertebral) of upper extremity | Yes |
| M99..18 | Subluxation complex (vertebral) of rib cage | Yes |
| M99..19 | Subluxation complex (vertebral) of abdomen and other regions | Yes |
| M99..2 | Subluxation stenosis of neural canal | No |
| M99..20 | Subluxation stenosis of neural canal of head region | Yes |
| M99..21 | Subluxation stenosis of neural canal of cervical region | Yes |
| M99..22 | Subluxation stenosis of neural canal of thoracic region | Yes |
| M99..23 | Subluxation stenosis of neural canal of lumbar region | Yes |
| M99..24 | Subluxation stenosis of neural canal of sacral region | Yes |
| M99..25 | Subluxation stenosis of neural canal of pelvic region | Yes |
| M99..26 | Subluxation stenosis of neural canal of lower extremity | Yes |
| M99..27 | Subluxation stenosis of neural canal of upper extremity | Yes |
| M99..28 | Subluxation stenosis of neural canal of rib cage | Yes |
| M99..29 | Subluxation stenosis of neural canal of abdomen and other regions | Yes |
| M99..3 | Osseous stenosis of neural canal | No |
| M99..30 | Osseous stenosis of neural canal of head region | Yes |
| M99..31 | Osseous stenosis of neural canal of cervical region | Yes |
| M99..32 | Osseous stenosis of neural canal of thoracic region | Yes |
| M99..33 | Osseous stenosis of neural canal of lumbar region | Yes |
| M99..34 | Osseous stenosis of neural canal of sacral region | Yes |
| M99..35 | Osseous stenosis of neural canal of pelvic region | Yes |
| M99..36 | Osseous stenosis of neural canal of lower extremity | Yes |
| M99..37 | Osseous stenosis of neural canal of upper extremity | Yes |
| M99..38 | Osseous stenosis of neural canal of rib cage | Yes |
| M99..39 | Osseous stenosis of neural canal of abdomen and other regions | Yes |
| M99..4 | Connective tissue stenosis of neural canal | No |
| M99..40 | Connective tissue stenosis of neural canal of head region | Yes |
| M99..41 | Connective tissue stenosis of neural canal of cervical region | Yes |
| M99..42 | Connective tissue stenosis of neural canal of thoracic region | Yes |
| M99..43 | Connective tissue stenosis of neural canal of lumbar region | Yes |
| M99..44 | Connective tissue stenosis of neural canal of sacral region | Yes |
| M99..45 | Connective tissue stenosis of neural canal of pelvic region | Yes |
| M99..46 | Connective tissue stenosis of neural canal of lower extremity | Yes |
| M99..47 | Connective tissue stenosis of neural canal of upper extremity | Yes |
| M99..48 | Connective tissue stenosis of neural canal of rib cage | Yes |
| M99..49 | Connective tissue stenosis of neural canal of abdomen and other regions | Yes |
| M99..5 | Intervertebral disc stenosis of neural canal | No |
| M99..50 | Intervertebral disc stenosis of neural canal of head region | Yes |
| M99..51 | Intervertebral disc stenosis of neural canal of cervical region | Yes |
| M99..52 | Intervertebral disc stenosis of neural canal of thoracic region | Yes |
| M99..53 | Intervertebral disc stenosis of neural canal of lumbar region | Yes |
| M99..54 | Intervertebral disc stenosis of neural canal of sacral region | Yes |
| M99..55 | Intervertebral disc stenosis of neural canal of pelvic region | Yes |
| M99..56 | Intervertebral disc stenosis of neural canal of lower extremity | Yes |
| M99..57 | Intervertebral disc stenosis of neural canal of upper extremity | Yes |
| M99..58 | Intervertebral disc stenosis of neural canal of rib cage | Yes |
| M99..59 | Intervertebral disc stenosis of neural canal of abdomen and other regions | Yes |
| M99..6 | Osseous and subluxation stenosis of intervertebral foramina | No |
| M99..60 | Osseous and subluxation stenosis of intervertebral foramina of head region | Yes |
| M99..61 | Osseous and subluxation stenosis of intervertebral foramina of cervical region | Yes |
| M99..62 | Osseous and subluxation stenosis of intervertebral foramina of thoracic region | Yes |
| M99..63 | Osseous and subluxation stenosis of intervertebral foramina of lumbar region | Yes |
| M99..64 | Osseous and subluxation stenosis of intervertebral foramina of sacral region | Yes |
| M99..65 | Osseous and subluxation stenosis of intervertebral foramina of pelvic region | Yes |
| M99..66 | Osseous and subluxation stenosis of intervertebral foramina of lower extremity | Yes |
| M99..67 | Osseous and subluxation stenosis of intervertebral foramina of upper extremity | Yes |
| M99..68 | Osseous and subluxation stenosis of intervertebral foramina of rib cage | Yes |
| M99..69 | Osseous and subluxation stenosis of intervertebral foramina of abdomen and other regions | Yes |
| M99..7 | Connective tissue and disc stenosis of intervertebral foramina | No |
| M99..70 | Connective tissue and disc stenosis of intervertebral foramina of head region | Yes |
| M99..71 | Connective tissue and disc stenosis of intervertebral foramina of cervical region | Yes |
| M99..72 | Connective tissue and disc stenosis of intervertebral foramina of thoracic region | Yes |
| M99..73 | Connective tissue and disc stenosis of intervertebral foramina of lumbar region | Yes |
| M99..74 | Connective tissue and disc stenosis of intervertebral foramina of sacral region | Yes |
| M99..75 | Connective tissue and disc stenosis of intervertebral foramina of pelvic region | Yes |
| M99..76 | Connective tissue and disc stenosis of intervertebral foramina of lower extremity | Yes |
| M99..77 | Connective tissue and disc stenosis of intervertebral foramina of upper extremity | Yes |
| M99..78 | Connective tissue and disc stenosis of intervertebral foramina of rib cage | Yes |
| M99..79 | Connective tissue and disc stenosis of intervertebral foramina of abdomen and other regions | Yes |
| M99..8 | Other biomechanical lesions | No |
| M99..80 | Other biomechanical lesions of head region | Yes |
| M99..81 | Other biomechanical lesions of cervical region | Yes |
| M99..82 | Other biomechanical lesions of thoracic region | Yes |
| M99..83 | Other biomechanical lesions of lumbar region | Yes |
| M99..84 | Other biomechanical lesions of sacral region | Yes |
| M99..85 | Other biomechanical lesions of pelvic region | Yes |
| M99..86 | Other biomechanical lesions of lower extremity | Yes |
| M99..87 | Other biomechanical lesions of upper extremity | Yes |
| M99..88 | Other biomechanical lesions of rib cage | Yes |
| M99..89 | Other biomechanical lesions of abdomen and other regions | Yes |
| M99..9 | Biomechanical lesion, unspecified | Yes |
Last reviewed: September 2026