AutoICD API

G20

Non-billable

Parkinson's disease

Parkinson's disease

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

G20-G26

Child Codes

3

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

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

Excludes 2

Conditions not included here, but the patient may have both

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Use Additional Code

Additional codes that should follow this code

Child Codes (3)

G20.A

Parkinson's disease without dyskinesia

G20.B

Parkinson's disease with dyskinesia

G20.C

Parkinsonism, unspecified

Billable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code G20?

ICD-10-CM code G20 represents "Parkinson's disease". It is a non-billable header code — use a more specific child code for billing purposes.

Is G20 a billable code?

No, G20 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under G20.

What chapter is G20 in?

G20 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).

What are the subcategories under G20?

G20 has 3 child codes, including: G20.A (Parkinson's disease without dyskinesia), G20.B (Parkinson's disease with dyskinesia), G20.C (Parkinsonism, unspecified).

Are additional codes required with G20?

Yes, when using G20 you should also 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-).

What are the UMLS CUIs for G20?

G20 is linked to 4 UMLS Concept Unique Identifiers: C0030567, C1399358, C0865475, C0865476. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.