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ICD Hub / Diseases of the nervous system (G00–G99) / 8A00.0 - Parkinson disease
ICD-11

ICD-11 Codes
for 8A00.0 - Parkinson disease
Teodor Jurukovski January 1, 1970
Fact checked by: Teodor Jurukovski
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Understanding Parkinson Disease

Parkinson disease (ICD-11 code 8A00.0) is a progressive neurodegenerative disorder primarily affecting the motor system. It is characterised by the gradual loss of dopamine-producing neurons in a specific area of the brain called the substantia nigra. This dopamine deficiency leads to the characteristic motor symptoms associated with the condition. While primarily known for its impact on movement, Parkinson disease also encompasses a range of non-motor symptoms that can significantly affect a person's quality of life.

Key Symptoms of Parkinson Disease

The primary motor symptoms of Parkinson disease, often referred to collectively as parkinsonism, include:
  • Bradykinesia (slowness of movement)
  • Rest tremor (shaking, often starting in one limb)
  • Rigidity (stiffness of the limbs and trunk)
  • Postural instability (impaired balance and coordination)
Non-motor symptoms can also be prominent and may include autonomic dysfunction, neuropsychiatric features such as depression and anxiety, sleep disturbances, and pain.

Diagnosing Parkinson Disease

The diagnosis of Parkinson disease (ICD-11 code 8A00.0) is primarily clinical, based on a thorough medical history and a neurological examination. Doctors look for the cardinal motor symptoms: bradykinesia combined with at least one other feature such as tremor, rigidity, or postural instability. While there is no single definitive test, diagnostic criteria help confirm the condition. Imaging techniques and response to dopaminergic medication may be used to support the diagnosis and rule out other conditions that can mimic Parkinson disease.

Managing Parkinson Disease

Management of Parkinson disease focuses on alleviating symptoms and improving quality of life. Treatment strategies often involve:
  • Medications: Primarily dopaminergic drugs that help replace or mimic dopamine in the brain.
  • Therapies: Physical therapy, occupational therapy, and speech therapy can help manage motor and non-motor symptoms.
  • Lifestyle adjustments: Exercise, diet, and support systems play a crucial role.
  • Surgical options: Deep brain stimulation may be considered for select individuals.
The ICD-11 code for Parkinson disease is 8A00.0.

Alternative Names for Parkinson Disease

Parkinson disease is also known by several other terms, including:
  • Parkinson's
  • Idiopathic Parkinson disease
  • Primary Parkinson disease
  • Paralysis agitans (an older term)
These terms are often used interchangeably in clinical settings and patient discussions.

Coding Parkinson Disease (ICD-11 Code 8A00.0)

Accurate documentation is essential for effective patient care and billing. When documenting Parkinson disease, healthcare providers should include details about the motor and non-motor symptoms, disease severity, and any associated complications. The primary ICD-11 code for Parkinson disease is 8A00.0. Specific sub-codes may be used to denote sporadic (8A00.00) or familial (8A00.01) forms, or if the condition is unspecified (8A00.0Z). Related conditions, such as dementia due to Parkinson disease (6D85.0) or chronic secondary musculoskeletal pain associated with Parkinson disease, can be coded using postcoordination.

Frequently asked questions

What is the ICD-11 classification meaning of code 8A00.0?
ICD-11 code 8A00.0 represents Parkinson disease.
How is Parkinson disease classified within the ICD-11 framework?
Parkinson disease (8A00.0) is classified under the broader category of Parkinsonism (8A00) in ICD-11.
When is the unspecified category for Parkinson disease used in ICD-11?
The unspecified category for Parkinson disease (e.g., 8A00.0Z) is used when the documentation lacks sufficient detail for a more specific classification.
What does the ICD-11 code for sporadic Parkinson disease signify?
The ICD-11 code for sporadic Parkinson disease signifies Parkinson disease that occurs without an apparent mode of inheritance.
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