G21.19

G21.19: Other drug induced secondary parkinsonism

Billable / specific codeICD-10-CM

G21.19 is a billable, specific ICD-10-CM code for other drug induced secondary parkinsonism. It is valid for submission on a claim.

Check G21.19 with the rest of the claim: free scrubber

Use additional code

Add a secondary code to capture the detail described below.

code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Other medication-induced parkinsonism

Excludes1 inherited from the categories above G21.19

A category’s note binds every code beneath it.

Written on G21: Secondary parkinsonism

Huntington's disease (G10)
neurocognitive disorder with Lewy bodies (G31.83)
Shy-Drager syndrome (G90.3)
syphilitic Parkinsonism (A52.19)

Other codes that can never be billed with G21.19

Their own Excludes1 notes name this code, so the conflict is not listed above.

G20.CParkinsonism, unspecified

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

G21.19 is named in 11 Medicare coverage policies: 11 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
A56612Billing and Coding: CT of the Head
A56619Billing and Coding: Nerve Conduction Studies and Electromyography
A56756Billing and Coding: Home Health - Psychiatric Care

Alphabetic index entries that lead here

Parkinsonism›medication-induced NEC
Parkinsonism›treatment-induced NEC
Parkinsonism›due to›drugs NEC
Parkinsonism›secondary›due to›drugs NEC

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under G21.1

G21.11Neuroleptic induced parkinsonism