G20.A1

Parkinson's disease without dyskinesia, without mention of fluctuations

Billable / specificHCC V28 199

G20.A1 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

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

certain conditions originating in the perinatal period (P04-P96) (from G20)
certain infectious and parasitic diseases (A00-B99) (from G20)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from G20)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from G20)
endocrine, nutritional and metabolic diseases (E00-E88) (from G20)
injury, poisoning and certain other consequences of external causes (S00-T88) (from G20)
neoplasms (C00-D49) (from G20)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from G20)

Add a code to identify the following, if applicable.

code, if applicable, to identify: (from G20)
dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4) (from G20)
dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-) (from G20)
dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3) (from G20)
dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2) (from G20)
dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0) (from G20)
mild neurocognitive disorder due to known physiological condition (F06.7-) (from G20)