Parkinsonism, unspecified
Billable / specificHCC V28 199
G20.C is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.
Inclusion terms
Applicable to
- Parkinsonism, NOS
Excludes1
Not coded here — never report together with this code.
Excludes2
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)
Use additional code
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)
Also known as
- Parkinsonism, NOS
- Dementia, with Parkinsonism
- Dementia, with Parkinsonism, with behavioral disturbance
- Dementia, in paralysis agitans
- Dementia, in paralysis agitans, with behavioral disturbance
- Hemiparkinsonism
- Paralysis, paralytic, agitans
- Parkinsonism
- Parkinsonism, dementia
- Parkinsonism, dementia, with behavioral disturbance
- Pyramidopallidonigral syndrome
- Syndrome, pyramidopallidonigral
Parent code
- G20Parkinson's diseaseHeader