M99.4
M99.4: Connective tissue stenosis of neural canal
Non-billable headerICD-10-CM
M99.4 is a non-billable header ICD-10-CM code for connective tissue stenosis of neural canal. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with M99.4
Their own Excludes1 notes name this code, so the conflict is not listed above.
- M43.5Other recurrent vertebral dislocation
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead M99.4
10 child codes. Green means billable.
- M99.40Connective tissue stenosis of neural canal of head region
- M99.41Connective tissue stenosis of neural canal of cervical region
- M99.42Connective tissue stenosis of neural canal of thoracic region
- M99.43Connective tissue stenosis of neural canal of lumbar region
- M99.44Connective tissue stenosis of neural canal of sacral region
- M99.45Connective tissue stenosis of neural canal of pelvic region
- M99.46Connective tissue stenosis of neural canal of lower extremity
- M99.47Connective tissue stenosis of neural canal of upper extremity
- M99.48Connective tissue stenosis of neural canal of rib cage
- M99.49Connective tissue stenosis of neural canal of abdomen and other regions
Other codes under M99
- M99.0Segmental and somatic dysfunction
- M99.1Subluxation complex (vertebral)
- M99.2Subluxation stenosis of neural canal
- M99.3Osseous stenosis of neural canal
- M99.5Intervertebral disc stenosis of neural canal
- M99.6Osseous and subluxation stenosis of intervertebral foramina
- M99.7Connective tissue and disc stenosis of intervertebral foramina
- M99.8Other biomechanical lesions
- M99.9Biomechanical lesion, unspecified