ICD-10-CM Diagnosis Code G81.9 - Hemiplegia, unspecified (original) (raw)

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ICD List 2025-2026 Edition

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Hemiplegia, unspecified

ICD-10-CM Code:

G81.9

ICD-10 Code for:

Hemiplegia, unspecified

Is Billable?

Not Valid for Submission

Code Navigator:

G81.9 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity from the list below for a diagnosis of hemiplegia, unspecified. The code is not specific and is NOT valid for the year 2026 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Unspecified diagnosis codes like G81.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Non-specific codes like G81.9 require more digits to indicate the appropriate level of specificity. Consider using any of the following billable codes with a higher level of specificity when coding for hemiplegia, unspecified:

Use G81.90 for Hemiplegia, unspecified affecting unspecified side

Use G81.91 for Hemiplegia, unspecified affecting right dominant side

Use G81.92 for Hemiplegia, unspecified affecting left dominant side

Use G81.93 for Hemiplegia, unspecified affecting right nondominant side

Use G81.94 for Hemiplegia, unspecified affecting left nondominant side

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  9. Code History

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.

a question about whether an individual has or had hemiplegia.

evidence of flaccid hemiplegia affecting the left dominant side.

evidence of flaccid hemiplegia affecting the left non-dominant side.

evidence of flaccid hemiplegia affecting the right dominant side.

evidence of flaccid hemiplegia affecting the right non-dominant side.

evidence of flaccid hemiplegia affecting the unspecified side.

a question about whether an individual has or had hemiplegia.

paralysis of one side of the body.

evidence of hemiplegia following cerebral infarction affecting left dominant side.

evidence of hemiplegia following cerebral infarction affecting left non-dominant side.

evidence of hemiplegia following cerebral infarction affecting right dominant side.

evidence of hemiplegia following cerebral infarction affecting right non-dominant side.

evidence of hemiplegia following cerebral infarction affecting unspecified side.

evidence of hemiplegia following non-traumatic intracerebral hemorrhage affecting left dominant side.

evidence of hemiplegia following non-traumatic intracerebral hemorrhage affecting left non-dominant side.

evidence of hemiplegia following non-traumatic intracerebral hemorrhage affecting right dominant side.

evidence of hemiplegia following non-traumatic intracerebral hemorrhage affecting right non-dominant side.

evidence of hemiplegia following non-traumatic intracerebral hemorrhage affecting unspecified side.

evidence of hemiplegia following non-traumatic subarachnoid hemorrhage affecting left dominant side.

evidence of hemiplegia following non-traumatic subarachnoid hemorrhage affecting left non-dominant side.

evidence of hemiplegia following non-traumatic subarachnoid hemorrhage affecting right dominant side.

evidence of hemiplegia following non-traumatic subarachnoid hemorrhage affecting right non-dominant side.

evidence of hemiplegia following non-traumatic subarachnoid hemorrhage affecting unspecified side.

evidence of hemiplegia following other cerebrovascular disease affecting left dominant side.

evidence of hemiplegia following other cerebrovascular disease affecting left non-dominant side.

evidence of hemiplegia following other cerebrovascular disease affecting right dominant side.

evidence of hemiplegia following other cerebrovascular disease affecting right non-dominant side.

evidence of hemiplegia following other cerebrovascular disease affecting unspecified side.

evidence of hemiplegia following other non-traumatic intracranial hemorrhage affecting left dominant side.

evidence of hemiplegia following other non-traumatic intracranial hemorrhage affecting left non-dominant side.

evidence of hemiplegia following other non-traumatic intracranial hemorrhage affecting right dominant side.

evidence of hemiplegia following other non-traumatic intracranial hemorrhage affecting right non-dominant side.

evidence of hemiplegia following other non-traumatic intracranial hemorrhage affecting unspecified side.

evidence of hemiplegia following unspecified cerebrovascular disease affecting left dominant side.

evidence of hemiplegia following unspecified cerebrovascular disease affecting left non-dominant side.

evidence of hemiplegia following unspecified cerebrovascular disease affecting right dominant side.

evidence of hemiplegia following unspecified cerebrovascular disease affecting right non-dominant side.

evidence of hemiplegia following unspecified cerebrovascular disease affecting unspecified side.

evidence of hemiplegia, unspecified affecting left dominant side.

evidence of hemiplegia, unspecified affecting left non-dominant side.

evidence of hemiplegia, unspecified affecting right dominant side.

evidence of hemiplegia, unspecified affecting right non-dominant side.

evidence of hemiplegia, unspecified affecting unspecified side.

kurtzke functional system scores kfss101 original result - paraplegia, hemiplegia, or marked quadriparesis.

evidence of spastic hemiplegia affecting left dominant side.

evidence of spastic hemiplegia affecting left non-dominant side.

evidence of spastic hemiplegia affecting right dominant side.

evidence of spastic hemiplegia affecting right non-dominant side.

a type of spastic cerebral palsy characterized by increased muscle tone of the arm and leg on the same side of the body.

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

References found for this diagnosis code in the External Cause of Injuries Index:

Paralysis

Paralysis is the loss of muscle function in part of your body. It happens when something goes wrong with the way messages pass between your brain and muscles. Paralysis can be complete or partial. It can occur on one or both sides of your body. It can also occur in just one area, or it can be widespread. Paralysis of the lower half of your body, including both legs, is called paraplegia. Paralysis of the arms and legs is quadriplegia.

Most paralysis is due to strokes or injuries such as spinal cord injury or a broken neck. Other causes of paralysis include:

Polio used to be a cause of paralysis, but polio no longer occurs in the U.S.

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