G20

Parkinson's disease

Non-billable header

G20 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Applicable to

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

Excludes2

Not included here — may be reported together when both conditions exist.

  • 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

Add a code to identify the following, if applicable.

Also known as

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

More specific codes G20

  • G20.AParkinson's disease without dyskinesiaHeader
  • G20.BParkinson's disease with dyskinesiaHeader
  • G20.CParkinsonism, unspecifiedBillable

Related codes

  • G21Secondary parkinsonismHeader
  • G23Other degenerative diseases of basal gangliaHeader
  • G24DystoniaHeader
  • G25Other extrapyramidal and movement disordersHeader
  • G26Extrapyramidal and movement disorders in diseases classified elsewhereBillable

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