M50.321 Other cervical disc degeneration at C4-C5 level

Billable ICD-10-CM code, FY2026.

Applicable to

• Other C4-C5 cervical disc degeneration

Applies from M50 Cervical disc disorders

Includes

• cervicothoracic disc disorders with cervicalgia
• cervicothoracic disc disorders

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 722.4 Degeneration of cervical intervertebral disc (approximate)

Code annotations containing back-references to M50.321

Back-references to M50

• Type 1 Excludes: G54 Nerve root and plexus disorders ("intervertebral disc disorders (M50-M51)")
• Type 2 Excludes: M51 Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders ("cervical and cervicothoracic disc disorders (M50.-)")
• Type 2 Excludes: M53.1 Cervicobrachial syndrome ("cervical disc disorder (M50.-)")
• Type 1 Excludes: M54.2 Cervicalgia ("cervicalgia due to intervertebral cervical disc disorder (M50.-)")
• Type 1 Excludes: S13.0 Traumatic rupture of cervical intervertebral disc ("rupture or displacement (nontraumatic) of cervical intervertebral disc NOS (M50.-)")

Diagnosis Index entries for M50.321

• Disorder (of) › disc (intervertebral) › cervical › degeneration › C4-C5

Nearby codes

• M50.3 Other cervical disc degeneration
• M50.30 Other cervical disc degeneration, unspecified cervical region
• M50.31 Other cervical disc degeneration, high cervical region
• M50.32 Other cervical disc degeneration, mid-cervical region
• M50.320 Other cervical disc degeneration, mid-cervical region, unspecified level
• M50.321 Other cervical disc degeneration at C4-C5 level (this code)
• M50.322 Other cervical disc degeneration at C5-C6 level
• M50.323 Other cervical disc degeneration at C6-C7 level
• M50.33 Other cervical disc degeneration, cervicothoracic region
• M50.8 Other cervical disc disorders
• M50.80 Other cervical disc disorders, unspecified cervical region