G61.9 Inflammatory polyneuropathy, unspecified

Billable ICD-10-CM code, FY2026.

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)

• 357.9 Unspecified inflammatory and toxic neuropathy (approximate)

Diagnosis Index entries for G61.9

• Polyneuropathy (peripheral) › inflammatory

Nearby codes

• G61.1 Serum neuropathy
• G61.8 Other inflammatory polyneuropathies
• G61.81 Chronic inflammatory demyelinating polyneuritis
• G61.82 Multifocal motor neuropathy
• G61.89 Other inflammatory polyneuropathies
• G61.9 Inflammatory polyneuropathy, unspecified (this code)