G83.4 Cauda equina syndrome

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Neurogenic bladder due to cauda equina syndrome

Excludes1 (never code together)

• cord bladder NOS (G95.89)
• neurogenic bladder NOS (N31.9)

Applies from G83 Other paralytic syndromes

Includes

• paralysis (complete) (incomplete), except as in G80-G82

Notes

• This category is to be used only when the listed conditions are reported without further specification, or are stated to be old or longstanding but of unspecified cause. The category is also for use in multiple coding to identify these conditions resulting from any cause.

Risk adjustment (HCC)

• CMS-HCC V28: HCC 182 — Spinal Cord Disorders/Injuries
• CMS-HCC V22: HCC 72 — Spinal Cord Disorders/Injuries
• RxHCC V08: HCC 155 — Spinal Cord Disorders
• ESRD V24: HCC 72

MS-DRG index

Defines the logic of DRG(s) 073-074 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 344.60 Cauda equina syndrome without mention of neurogenic bladder (approximate)
• 344.61 Cauda equina syndrome with neurogenic bladder (approximate)

Code annotations containing back-references to G83.4

Back-references to G83.4

• Type 1 Excludes: G95.8 Other specified diseases of spinal cord ("neurogenic bladder due to cauda equina syndrome (G83.4)")
• Type 1 Excludes: N31 Neuromuscular dysfunction of bladder, not elsewhere classified ("neurogenic bladder due to cauda equina syndrome (G83.4)")

Diagnosis Index entries for G83.4

• Compression › cauda equina
• Lesion (s) (nontraumatic) › cauda equina
• Neurogenic › bladder › cauda equina syndrome
• Syndrome › cauda equina
• Syndrome › compression › cauda equina

Nearby codes

• G83.30 Monoplegia, unspecified affecting unspecified side
• G83.31 Monoplegia, unspecified affecting right dominant side
• G83.32 Monoplegia, unspecified affecting left dominant side
• G83.33 Monoplegia, unspecified affecting right nondominant side
• G83.34 Monoplegia, unspecified affecting left nondominant side
• G83.4 Cauda equina syndrome (this code)
• G83.5 Locked-in state
• G83.8 Other specified paralytic syndromes
• G83.81 Brown-Sequard syndrome
• G83.82 Anterior cord syndrome
• G83.83 Posterior cord syndrome