ICD10BillableValid for clinical use
ICD-10 Code G25.4: Drug-induced chorea
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).
When is it used?
- May be used when a clinician documents drug-induced chorea in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
6Diseases of the nervous system (G00-G99)
block
G20-G26Extrapyramidal and movement disorders
category
G25Other extrapyramidal and movement disorders
currentG25
Official coding notes
Applicable to
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Use additional code
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
NeurologistGeneral Physician
Related codes
G25.0Essential tremorcodeG25.1Drug-induced tremorcodeG25.2Other specified forms of tremorcodeG25.3MyoclonuscodeG25.5Other choreacodeG25.6Drug induced tics and other tics of organic origincategoryG25.7Other and unspecified drug induced movement disorderscategoryG25.8Other specified extrapyramidal and movement disorderscategoryG25.9Extrapyramidal and movement disorder, unspecifiedcode
Sibling codes
G25.0Essential tremorbillableG25.1Drug-induced tremorbillableG25.2Other specified forms of tremorbillableG25.3MyoclonusbillableG25.5Other choreabillableG25.6Drug induced tics and other tics of organic originG25.7Other and unspecified drug induced movement disordersG25.8Other specified extrapyramidal and movement disordersG25.9Extrapyramidal and movement disorder, unspecifiedbillable
Coverage-related procedures and services
CPT 92651high
AUDITORY EVOKED POTENTIALS; FOR HEARING STATUS DETERMINATION, BROADBAND STIMULI, WITH INTERPRETATION AND REPORT
Source: CMS coverage guidance
CPT 92652high
AUDITORY EVOKED POTENTIALS; FOR THRESHOLD ESTIMATION AT MULTIPLE FREQUENCIES, WITH INTERPRETATION AND REPORT
Source: CMS coverage guidance
CPT 92653high
AUDITORY EVOKED POTENTIALS; NEURODIAGNOSTIC, WITH INTERPRETATION AND REPORT
Source: CMS coverage guidance
CPT 70460high
COMPUTED TOMOGRAPHY, HEAD OR BRAIN; WITH CONTRAST MATERIAL(S)
Source: CMS coverage guidance
CPT 70450high
COMPUTED TOMOGRAPHY, HEAD OR BRAIN; WITHOUT CONTRAST MATERIAL
Source: CMS coverage guidance
CPT 70470high
COMPUTED TOMOGRAPHY, HEAD OR BRAIN; WITHOUT CONTRAST MATERIAL, FOLLOWED BY CONTRAST MATERIAL(S) AND FURTHER SECTIONS
Source: CMS coverage guidance
Mapped diagnoses and classifications
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
G25.4
Common synonyms
Drug-induced chorea
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.