G81.91 Hemiplegia, unspecified affecting right dominant side

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

Applies from G81 Hemiplegia and hemiparesis

Excludes1 (never code together)

• congenital cerebral palsy (G80.-)
• hemiplegia and hemiparesis due to sequela of cerebrovascular disease (I69.05-, I69.15-, I69.25-, I69.35-, I69.85-, I69.95-)

Notes

• This category is to be used only when hemiplegia (complete)(incomplete) is reported without further specification, or is stated to be old or longstanding but of unspecified cause. The category is also for use in multiple coding to identify these types of hemiplegia resulting from any cause.

Risk adjustment (HCC)

• CMS-HCC V28: HCC 253 — Hemiplegia/Hemiparesis
• CMS-HCC V22: HCC 103 — Hemiplegia/Hemiparesis
• ESRD V24: HCC 103

MS-DRG index

Defines the logic of DRG(s) 056-057 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 342.81 Other specified hemiplegia and hemiparesis affecting dominant side (approximate)
• 342.91 Hemiplegia, unspecified, affecting dominant side (approximate)

Nearby codes

• G81.12 Spastic hemiplegia affecting left dominant side
• G81.13 Spastic hemiplegia affecting right nondominant side
• G81.14 Spastic hemiplegia affecting left nondominant side
• G81.9 Hemiplegia, unspecified
• G81.90 Hemiplegia, unspecified affecting unspecified side
• G81.91 Hemiplegia, unspecified affecting right dominant side (this code)
• G81.92 Hemiplegia, unspecified affecting left dominant side
• G81.93 Hemiplegia, unspecified affecting right nondominant side
• G81.94 Hemiplegia, unspecified affecting left nondominant side