Parkinson's Disease ICD-10-CM Codes

Which Parkinson's disease ICD codes are billable?

The previously listed ICD codes are all billable. When coding, use an additional code to identify drug if drug-induced or to identify the underlying condition for secondary parkinsonism in diseases classified elsewhere.

Clinical information

Parkinson's disease is a neurodegenerative disorder of the nervous system that affects movement. Vital clinical highlights include:

• Generally develops after age 60 but can occur earlier.
• Symptoms include tremors, rigidity, bradykinesia, and trouble with balance.
• Results from the degeneration of dopamine-producing neurons in the basal ganglia of the brain.
• The exact cause is unspecified, but genetic and environmental factors play a role in primary Parkinsonism or Parkinson's disease.
• No cure currently exists, but symptoms can be managed with dopamine replacement medications and other treatment options.
• Anxiety is a common non-motor symptom that may require separate coding.
• Fluctuations in symptoms and dyskinesia can occur as complications of long-term treatment.
• Lewy bodies (protein deposits in brain cells) are a hallmark pathological finding.
• Dysfunction of the autonomic nervous system may lead to orthostatic hypotension.

Coding tips

• For Parkinsonism or Parkinson's disease, code selections should be based on the most specific diagnosis documented.
• When drug-induced, use an additional code to identify the drug causing the adverse effect.
• Consider combination coding when Parkinson's co-occurs with other diseases like dementia or epilepsy.
• Document the presence or absence of dyskinesia and off episodes to support the most specific code selection.
• Regular review of the patient's status is important for accurate coding, as symptoms and complications may change over time.

Synonyms include

• Parkinsonism
• Idiopathic Parkinson's
• Paralysis agitans
• Shaking palsy
• Parkinsonian syndrome

Other relevant codes

• F02.80: Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
• F02.81: Dementia in other diseases classified elsewhere, unspecified severity, with behavioral disturbance
• F02.A0: Dementia in other diseases classified elsewhere, mild, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
• F02.A1: Dementia in other diseases classified elsewhere, mild, with behavioral disturbance
• F06.71: Mild neurocognitive disorder due to known physiological condition with behavioral disturbance