ICD-10-CM Code For Dystonia: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group G24 includes diagnoses for dystonia disorders, such as focal, segmental, and generalized dystonias that involve sustained or intermittent involuntary muscle contractions and abnormal postures or movements. These ICD-10-CM diagnosis codes are used to document a range of movement disorder presentations, capturing distribution, etiology when specified, and associated functional impairment relevant to this group. Accurate coding within the ICD-10-CM G24 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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ICD-10-CM G24: Dystonia Overview

The codes in the International Classification of Diseases, Tenth Revision, Clinical Modification group G24 represent dystonia disorders—movement disorders characterized by sustained or intermittent muscle contractions causing abnormal movements or postures. These conditions target the nervous system, specifically motor control pathways, and may affect focal, segmental, or generalized body regions. Accurate coding matters for appropriate claim adjudication and reflects clinical complexity that can influence care planning and reimbursement.

When to Use

Use a code from this group when a clinical diagnosis of dystonia has been established and documented, specifying the distribution and any known underlying cause if available. Select the most specific code to reflect the anatomical distribution and any accompanying descriptors to support accurate clinical and billing records.

ICD-10-CM Codes

10 rows

ICD-10-CM Code	Description
G24.01	Drug induced subacute dyskinesia
G24.02	Drug induced acute dystonia
G24.09	Other drug induced dystonia
G24.1	Genetic torsion 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

DRG Codes

7 rows

DRG Code	Description
056	Degenerative Nervous System Disorders with MCC
057	Degenerative Nervous System Disorders without MCC
091	Other Disorders of Nervous System with MCC
092	Other Disorders of Nervous System with CC
093	Other Disorders of Nervous System without CC/MCC
124	Other Disorders of the Eye with MCC or Thrombolytic Agent
125	Other Disorders of the Eye without MCC

Typical Clinical Scenarios

A middle-aged woman presents to the neurology clinic with progressive involuntary neck twisting and sustained abnormal head posture that has developed over months, interfering with driving and work. Examination shows patterned dystonic movements of the neck with preserved conscious awareness and no evidence of other neurodegenerative signs; secondary causes have been excluded, so a focal primary dystonia diagnosis is assigned. Typical codes: G24.02, G24.3
An older patient arrives to the emergency department after abrupt onset of generalized muscle contractions and repetitive twisting movements following initiation of a new antipsychotic medication several days earlier. The acute drug-induced extrapyramidal reaction is treated emergently and the dystonic state is documented as related to the medication exposure, prompting assignment of a drug-induced dystonia code. Typical codes: G24.1, G24.5
A young adult with a long-standing diagnosis of cervical dystonia visits for management of persistent symptoms and reports coexisting myoclonic jerks and tremor; prior Botox injections provided partial relief but disability and chronic pain persist. The visit documents chronic, focal dystonia with associated movement disorder features and need for ongoing multidisciplinary care, so a chronic dystonia code from the group is used to capture the condition as a comorbidity. Typical codes: G24.02, G24.8

Related Codes

G20-PARKINSONS-DISEASE

ICD-10-CM Code For Parkinsons Disease: Group Overview

G21-SECONDARY-PARKINSONISM

ICD-10-CM Code For Secondary Parkinsonism: Group Overview

G23-OTHER-DEGENERATIVE-DISEASES-BASAL-GANGLIA

ICD-10-CM Code For Other Degenerative Diseases Of Basal Ganglia: Group Overview

G25-OTHER-EXTRAPYRAMIDAL-MOVEMENT-DISORDERS

ICD-10-CM Code For Other Extrapyramidal And Movement Disorders: Group Overview

G26-EXTRAPYRAMIDAL-AND-MOVEMENT-DISORDERS

ICD-10-CM Code For Extrapyramidal And Movement Disorders In Diseases Classified Elsewhere: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

10 rows

ICD-10-CM Code	Description
G24.01	Drug induced subacute dyskinesia
G24.02	Drug induced acute dystonia
G24.09	Other drug induced dystonia
G24.1	Genetic torsion 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

DRG Codes

7 rows

DRG Code	Description
056	Degenerative Nervous System Disorders with MCC
057	Degenerative Nervous System Disorders without MCC
091	Other Disorders of Nervous System with MCC
092	Other Disorders of Nervous System with CC
093	Other Disorders of Nervous System without CC/MCC
124	Other Disorders of the Eye with MCC or Thrombolytic Agent
125	Other Disorders of the Eye without MCC

Typical Clinical Scenarios

A middle-aged woman presents to the neurology clinic with progressive involuntary neck twisting and sustained abnormal head posture that has developed over months, interfering with driving and work. Examination shows patterned dystonic movements of the neck with preserved conscious awareness and no evidence of other neurodegenerative signs; secondary causes have been excluded, so a focal primary dystonia diagnosis is assigned. Typical codes: G24.02, G24.3
An older patient arrives to the emergency department after abrupt onset of generalized muscle contractions and repetitive twisting movements following initiation of a new antipsychotic medication several days earlier. The acute drug-induced extrapyramidal reaction is treated emergently and the dystonic state is documented as related to the medication exposure, prompting assignment of a drug-induced dystonia code. Typical codes: G24.1, G24.5
A young adult with a long-standing diagnosis of cervical dystonia visits for management of persistent symptoms and reports coexisting myoclonic jerks and tremor; prior Botox injections provided partial relief but disability and chronic pain persist. The visit documents chronic, focal dystonia with associated movement disorder features and need for ongoing multidisciplinary care, so a chronic dystonia code from the group is used to capture the condition as a comorbidity. Typical codes: G24.02, G24.8

Related Codes

G20-PARKINSONS-DISEASE

ICD-10-CM Code For Parkinsons Disease: Group Overview

G21-SECONDARY-PARKINSONISM

ICD-10-CM Code For Secondary Parkinsonism: Group Overview

G23-OTHER-DEGENERATIVE-DISEASES-BASAL-GANGLIA

ICD-10-CM Code For Other Degenerative Diseases Of Basal Ganglia: Group Overview

G25-OTHER-EXTRAPYRAMIDAL-MOVEMENT-DISORDERS

ICD-10-CM Code For Other Extrapyramidal And Movement Disorders: Group Overview

G26-EXTRAPYRAMIDAL-AND-MOVEMENT-DISORDERS

ICD-10-CM Code For Extrapyramidal And Movement Disorders In Diseases Classified Elsewhere: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Dystonia: Group Overview

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ICD-10-CM G24: Dystonia Overview

ICD-10-CM Code For Dystonia: Group Overview

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ICD-10-CM G24: Dystonia Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which diagnoses are included in ICD-10-CM group `G24`?

How does accurate coding within `G24` impact claims and documentation?

What dystonia presentations are represented by codes in `G24`?

Which DRGs are related to the `G24` dystonia group for reimbursement grouping?

Are etiologies and distribution specified within `G24` codes?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which diagnoses are included in ICD-10-CM group `G24`?

How does accurate coding within `G24` impact claims and documentation?

What dystonia presentations are represented by codes in `G24`?

Which DRGs are related to the `G24` dystonia group for reimbursement grouping?

Are etiologies and distribution specified within `G24` codes?

References