ICD-10 G24.4
Billable / SpecificIdiopathic orofacial dystonia
About ICD-10-CM G24.4
ICD-10-CM code G24.4 represents Idiopathic orofacial dystonia. This is a billable/specific code in the Nervous System chapter (block G24). The 2026 edition of ICD-10-CM G24.4 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under G24.4. Per CMS ICD-10-CM Tabular 2026.
- Orofacial dyskinesia
Type 1 Excludes
Pure excludes, these codes can never be coded together with G24.4. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- drug induced orofacial dyskinesia (G24.01)
Medicare LCD Coverage for G24.4
Local Coverage Determinations (LCDs) from CMS MACs that list G24.4 as a covered diagnosis.
Showing top 10 of 856 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G24.4.
2 Cigna
5 Medicare
CPT Codes Commonly Billed with G24.4
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 46505 CMS LCD: Billing and Coding: Botulinum Toxin Injections CMS LCD
- 64647 CMS LCD: Billing and Coding: Botulinum Toxin Injections CMS LCD
- 43201 CMS LCD: Billing and Coding: Botulinum Toxin Injections CMS LCD
- 64645 CMS LCD: Billing and Coding: Botulinum Toxin Injections CMS LCD
- 43236 CMS LCD: Billing and Coding: Botulinum Toxin Injections CMS LCD
- J0589 CMS LCD: Billing and Coding: Botulinum Toxin Injections CMS LCD
- 64612 CMS LCD: Billing and Coding: Botulinum Toxin Injections CMS LCD
- 64642 CMS LCD: Billing and Coding: Botulinum Toxin Injections CMS LCD
- J0587 CMS LCD: Billing and Coding: Botulinum Toxin Injections CMS LCD
- 64643 CMS LCD: Billing and Coding: Botulinum Toxin Injections CMS LCD
Convert G24.4 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| G24.4 | 33382 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G24.4
Other codes in section G20-G26 (Extrapyramidal and movement disorders).
ICD-10 G24.4, Billing FAQ
Is ICD-10 code G24.4 billable? +
Yes, G24.4 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to G24.4? +
ICD-10 G24.4 includes: Orofacial dyskinesia.
What codes are Type 1 Excludes for G24.4? +
Type 1 Excludes (never code together with G24.4): drug induced orofacial dyskinesia (G24.01)
What CPT codes are commonly billed with G24.4? +
Procedures frequently paired with G24.4 include: 46505, 64647, 43201, 64645, 43236.
What ICD-9 codes does G24.4 map to? +
Per CMS GEMs, G24.4 maps to ICD-9 codes: 33382. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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