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Home/Diagnosis/ICD-10 Coding for Drug-Induced Parkinsonism

ICD-10 Coding for Drug-Induced Parkinsonism

G21.19
G21.11

Complete ICD-10-CM coding and documentation guide for icd-10 coding for drug-induced parkinsonism includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
DIP
Medication-Induced Parkinsonism
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Key Information: ICD-10 Coding for Drug-Induced Parkinsonism

Essential facts and insights about ICD-10 Coding for Drug-Induced Parkinsonism

Use ICD-10 code G21.19 for other drug-induced secondary parkinsonism, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Other drug-induced secondary parkinsonism

Billable Code
G21.19
Billable

Diagnostic Criteria

clinical:
  • • Symptoms improve after stopping the drug.
documentation:
  • • Explicit mention of drug and symptom timeline.

Applicable To

  • • Parkinsonism due to drugs other than neuroleptics

Important Notes

  • • Ensure documentation specifies the drug and timeline of symptom onset.

Neuroleptic-induced parkinsonism

Billable Code
G21.11
Billable

Diagnostic Criteria

clinical:
  • • Symptoms resolve after neuroleptic discontinuation
  • • Normal DaTscan differentiating from Parkinson's disease

Applicable To

  • • Parkinsonism due to neuroleptic drugs

Important Notes

  • • Ensure documentation clearly links symptoms to neuroleptic use.
Ancillary Codes

Additional codes that may be used with this diagnosis

T43.4X5

Adverse effect of antipsychotics

Use alongside G21.11 to specify the drug causing parkinsonism.

Frequently Asked Questions

What is the ICD-10 code for drug-induced parkinsonism?

The ICD-10 code for drug-induced parkinsonism is G21.19 for other drug-induced causes and G21.11 for neuroleptic-induced parkinsonism.

How do you document drug-induced parkinsonism?

Document the drug name, dose, start date, and symptom onset timeline to establish causality for drug-induced parkinsonism.

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