G24.1: Genetic torsion dystonia
G24.1, genetic torsion dystonia, is listed as a covered diagnosis in 12 Medicare billing and coding articles that apply to 15 HCPCS Level II codes, including J0585 (Injection, onabotulinumtoxina, 1 unit), J0588 (Injection, incobotulinumtoxin a, 1 unit), J0586 (Injection, abobotulinumtoxina, 5 units). The articles come from 5 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.
HCPCS Level II codes with G24.1 as a covered diagnosis
| Code | Description | Medicare coverage | DMEPOS fee 2026 (state range) | Articles listing it |
|---|---|---|---|---|
| J0585 | Injection, onabotulinumtoxina, 1 unit | Special coverage instructions apply | — | 6 |
| J0588 | Injection, incobotulinumtoxin a, 1 unit | Carrier judgment | — | 6 |
| J0586 | Injection, abobotulinumtoxina, 5 units | Carrier judgment | — | 6 |
| J0587 | Injection, rimabotulinumtoxinb, 100 units | Special coverage instructions apply | — | 6 |
| J0589 | Injection, daxibotulinumtoxina-lanm, 1 unit | Carrier judgment | — | 6 |
| G2187 | Patients with clinical indications for imaging of the head: head trauma | Carrier judgment | — | 1 |
| G2188 | Patients with clinical indications for imaging of the head: new or change in headache above 50 years of age | Carrier judgment | — | 1 |
| G2189 | Patients with clinical indications for imaging of the head: abnormal neurologic exam | Carrier judgment | — | 1 |
| G2190 | Patients with clinical indications for imaging of the head: headache radiating to the neck | Carrier judgment | — | 1 |
| G2191 | Patients with clinical indications for imaging of the head: positional headaches | Carrier judgment | — | 1 |
| G2192 | Patients with clinical indications for imaging of the head: temporal headaches in patients over 55 years of age | Carrier judgment | — | 1 |
| G2193 | Patients with clinical indications for imaging of the head: new onset headache in pre-school children or younger (<6 years of age) | Carrier judgment | — | 1 |
| G2194 | Patients with clinical indications for imaging of the head: new onset headache in pediatric patients with disabilities for which headache is a concern as inferred from behavior | Carrier judgment | — | 1 |
| G2195 | Patients with clinical indications for imaging of the head: occipital headache in children | Carrier judgment | — | 1 |
| G0255 | Current perception threshold/sensory nerve conduction test, (snct) per limb, any nerve | Non-covered by Medicare | Not covered | 5 |
Medicare policy articles listing G24.1
- A57185: Billing and Coding: Botulinum Toxin Injections (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35170, L35172, L39832, L39836
- A57186: Billing and Coding: Botulinum Toxin Injections (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35170, L35172, L39832, L39836
- A59707: Billing and Coding: Botulinum Toxin Injections (Wellpoint Federal (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35170, L35172, L39832, L39836
- A59714: Billing and Coding: Botulinum Toxin Injections (Palmetto GBA (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35170, L35172, L39832, L39836
- A59726: Billing and Coding: Botulinum Toxins Injections (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 5 Level II codes)
- A59809: Billing and Coding: Botulinum Toxin Injections (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35170, L35172, L39832, L39836
- A57307: Billing and Coding: Nerve Conduction Studies and Electromyography (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57478: Billing and Coding: Nerve Conduction Studies and Electromyography (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A54969: Billing and Coding: Nerve Conduction Studies and Electromyography (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57668: Billing and Coding: Nerve Conduction Studies and Electromyography (Wellpoint Federal (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A56619: Billing and Coding: Nerve Conduction Studies and Electromyography (Palmetto GBA (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A56612: Billing and Coding: CT of the Head (Palmetto GBA (MAC - Part A, MAC - Part B); 9 Level II codes). LCD with the same title: L34417
A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.
Other G24 diagnoses (Dystonia)
- G24.01 — Drug induced subacute dyskinesia
- G24.02 — Drug induced acute dystonia
- G24.09 — Other drug induced dystonia
- G24.2 — Idiopathic nonfamilial dystonia
- G24.3 — Spasmodic torticollis
- G24.4 — Idiopathic orofacial dystonia
- G24.5 — Blepharospasm
- G24.8 — Other dystonia
- G24.9 — Dystonia, unspecified
Frequently asked questions
Does Medicare cover G24.1 (Genetic torsion dystonia)?
Medicare covers items and services, not diagnoses. 12 Medicare billing and coding articles list G24.1 as a covered diagnosis for 15 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.
Which HCPCS codes can be billed with ICD-10 G24.1?
The Level II codes from the policies most specific to this diagnosis are J0585 (Injection, onabotulinumtoxina, 1 unit, 6 articles); J0588 (Injection, incobotulinumtoxin a, 1 unit, 6 articles); J0586 (Injection, abobotulinumtoxina, 5 units, 6 articles); J0587 (Injection, rimabotulinumtoxinb, 100 units, 6 articles); J0589 (Injection, daxibotulinumtoxina-lanm, 1 unit, 6 articles). Code choice depends on the item supplied; check each code's descriptor.
Which Medicare policy articles list G24.1?
A57185 (Billing and Coding: Botulinum Toxin Injections); A57186 (Billing and Coding: Botulinum Toxin Injections); A59707 (Billing and Coding: Botulinum Toxin Injections), and 9 more articles.
What is ICD-10-CM code G24.1?
G24.1 is the ICD-10-CM code for genetic torsion dystonia, in category G24 (Dystonia), chapter 6: Diseases of the nervous system.
Next steps
- Run a reimbursement report for a device billed under J0585
- Watch J0585 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for J0585
Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.
Chapter 6: Diseases of the nervous system · All diagnoses · HCPCS lookup