M99.56 Intervertebral disc stenosis of neural canal of lower extremity

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)

• 724.09 Spinal stenosis, other region (approximate)

Code annotations containing back-references to M99.56

Back-references to M99

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

Diagnosis Index entries for M99.56

• Stenosis, stenotic (cicatricial) › neural canal › intervertebral disc › lower extremity

Nearby codes

• 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
• M99.56 Intervertebral disc stenosis of neural canal of lower extremity (this code)
• M99.57 Intervertebral disc stenosis of neural canal of upper extremity
• M99.58 Intervertebral disc stenosis of neural canal of rib cage
• M99.59 Intervertebral disc stenosis of neural canal of abdomen and other regions
• M99.6 Osseous and subluxation stenosis of intervertebral foramina
• M99.60 Osseous and subluxation stenosis of intervertebral foramina of head region