G20 Parkinson's disease

Non-billable header with 3 child codes.

Applicable to

• Hemiparkinsonism
• Idiopathic Parkinsonism or Parkinson's disease
• Paralysis agitans
• Primary Parkinsonism or Parkinson's disease

Use additional code

• code, if applicable, to identify:
• dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4)
• dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)
• dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3)
• dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2)
• dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)
• mild neurocognitive disorder due to known physiological condition (F06.7-)

Applies from G20 Parkinson's disease

Applicable to

• Hemiparkinsonism
• Idiopathic Parkinsonism or Parkinson's disease
• Paralysis agitans
• Primary Parkinsonism or Parkinson's disease

Use additional code

• code, if applicable, to identify:
• dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4)
• dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)
• dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3)
• dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2)
• dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)
• mild neurocognitive disorder due to known physiological condition (F06.7-)

Codes under G20

• G20.A Parkinson's disease without dyskinesia
• G20.B Parkinson's disease with dyskinesia
• G20.C Parkinsonism, unspecified

Approximate ICD-9-CM (GEMs)

• 332.0 Paralysis agitans (approximate)

Code annotations containing back-references to G20

Back-references to G20

• Code First: F02 Dementia in other diseases classified elsewhere ("Parkinson's disease (G20.-)")
• Code First: F06.7 Mild neurocognitive disorder due to known physiological condition ("Parkinson's disease (G20.-)")
• Type 2 Excludes: F98.4 Stereotyped movement disorders ("movement disorders of organic origin (G20-G25)")
• Type 1 Excludes: R25 Abnormal involuntary movements ("specific movement disorders (G20-G26)")
• Code First: R47.82 Fluency disorder in conditions classified elsewhere ("Parkinson's disease (G20.-)")

Back-references to G20

• Code First: F02 Dementia in other diseases classified elsewhere ("Parkinson's disease (G20.-)")
• Code First: F06.7 Mild neurocognitive disorder due to known physiological condition ("Parkinson's disease (G20.-)")
• Type 2 Excludes: F98.4 Stereotyped movement disorders ("movement disorders of organic origin (G20-G25)")
• Type 1 Excludes: R25 Abnormal involuntary movements ("specific movement disorders (G20-G26)")
• Code First: R47.82 Fluency disorder in conditions classified elsewhere ("Parkinson's disease (G20.-)")

Nearby codes

• G20 Parkinson's disease (this code)
• G20.A Parkinson's disease without dyskinesia
• G20.A1 Parkinson's disease without dyskinesia, without mention of fluctuations
• G20.A2 Parkinson's disease without dyskinesia, with fluctuations
• G20.B Parkinson's disease with dyskinesia
• G20.B1 Parkinson's disease with dyskinesia, without mention of fluctuations