M99.50 Intervertebral disc stenosis of neural canal of head region

Billable ICD-10-CM code, FY2026.

Applies from M99 Biomechanical lesions, not elsewhere classified

Notes

• This category should not be used if the condition can be classified elsewhere.

MS-DRG index

Defines the logic of DRG(s) 551-552 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 723.0 Spinal stenosis in cervical region (approximate)

Code annotations containing back-references to M99.50

Back-references to M99

• Type 1 Excludes: M43.5 Other recurrent vertebral dislocation ("biomechanical lesions NEC (M99.-)")

Diagnosis Index entries for M99.50

• Stenosis, stenotic (cicatricial) › neural canal › intervertebral disc › head region
• Stenosis, stenotic (cicatricial) › neural canal › intervertebral disc › occipitocervical

Nearby codes

• M99.46 Connective tissue stenosis of neural canal of lower extremity
• M99.47 Connective tissue stenosis of neural canal of upper extremity
• M99.48 Connective tissue stenosis of neural canal of rib cage
• M99.49 Connective tissue stenosis of neural canal of abdomen and other regions
• M99.5 Intervertebral disc stenosis of neural canal
• M99.50 Intervertebral disc stenosis of neural canal of head region (this code)
• M99.51 Intervertebral disc stenosis of neural canal of cervical region
• M99.52 Intervertebral disc stenosis of neural canal of thoracic region
• M99.53 Intervertebral disc stenosis of neural canal of lumbar region
• M99.54 Intervertebral disc stenosis of neural canal of sacral region
• M99.55 Intervertebral disc stenosis of neural canal of pelvic region