Hemiplegia and hemiparesis (G81) ICD-10-CM
The G81 code range covers hemiplegia and hemiparesis with 19 ICD-10-CM diagnosis codes. 15 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- 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
- 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.
Codes in the G81 Range 19 codes · 15 billable
- G81 Hemiplegia and hemiparesisNon-billable
- G81.0 Flaccid hemiplegiaNon-billable
- G81.00 Flaccid hemiplegia affecting unspecified side
- G81.01 Flaccid hemiplegia affecting right dominant side
- G81.02 Flaccid hemiplegia affecting left dominant side
- G81.03 Flaccid hemiplegia affecting right nondominant side
- G81.04 Flaccid hemiplegia affecting left nondominant side
- G81.1 Spastic hemiplegiaNon-billable
- G81.10 Spastic hemiplegia affecting unspecified side
- G81.11 Spastic hemiplegia affecting right dominant side
- 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, unspecifiedNon-billable
- G81.90 Hemiplegia, unspecified affecting unspecified side
- G81.91 Hemiplegia, unspecified affecting right dominant side
- G81.92 Hemiplegia, unspecified affecting left dominant side
- G81.93 Hemiplegia, unspecified affecting right nondominant side
- G81.94 Hemiplegia, unspecified affecting left nondominant side
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the G81 range.
Hemiplegia
Severe or complete loss of motor function on one side of the body. This condition is usually caused by BRAIN DISEASES that are localized to the cerebral hemisphere opposite to the side of weakness. Less frequently, BRAIN STEM lesions; cervical SPINAL CORD DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; and other conditions may manifest as hemiplegia. The term hemiparesis (see PARESIS) refers to mild to moderate weakness involving one side of the body.
Spastic Hemiplegia
A type of spastic cerebral palsy characterized by increased muscle tone of the arm and leg on the same side of the body.
About the G81 Code Range
Hemiplegia means paralysis on one side of the body; hemiparesis means weakness on one side. Both appear in this category of nervous system conditions.
The subdivisions distinguish flaccid hemiplegia (G81.0), spastic hemiplegia (G81.1), and hemiplegia without a specified type (G81.9). Each group then separates right and left dominant or nondominant sides, with an option for an unspecified side.
Questions About This Page
How many billable codes are in the G81 range?
Of the 19 codes in this range, 15 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the G81 range classify?
The range classifies hemiplegia and hemiparesis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
