G62.81 Critical illness polyneuropathy

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

Applicable to

• Acute motor neuropathy

Risk adjustment (HCC)

• CMS-HCC V22: HCC 75 — Myasthenia Gravis/Myoneural Disorders, Inflammatory and Toxic Neuropathy
• RxHCC V08: HCC 158 — Inflammatory and Toxic Neuropathy
• ESRD V24: HCC 75

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 357.82 Critical illness polyneuropathy

Code annotations containing back-references to G62.81

Back-references to G62.81

• Use Additional: R65.11 Systemic inflammatory response syndrome (SIRS) of non-infectious origin with acute organ dysfunction ("critical illness polyneuropathy (G62.81)")
• Use Additional: R65.2 Severe sepsis ("critical illness polyneuropathy (G62.81)")

Diagnosis Index entries for G62.81

• Neuropathy, neuropathic › acute motor
• Neuropathy, neuropathic › progressive › inflammatory
• Polyneuropathy (peripheral) › critical illness

Nearby codes

• G62 Other and unspecified polyneuropathies
• G62.0 Drug-induced polyneuropathy
• G62.1 Alcoholic polyneuropathy
• G62.2 Polyneuropathy due to other toxic agents
• G62.8 Other specified polyneuropathies
• G62.81 Critical illness polyneuropathy (this code)
• G62.82 Radiation-induced polyneuropathy
• G62.89 Other specified polyneuropathies
• G62.9 Polyneuropathy, unspecified