2027 ICD-10-CM Diagnosis Code G24.1Genetic torsion dystonia
ICD-10-CM Codes›G00–G99›G20-G26›G24
- Billable — Valid for Submission
- Chronic Condition
G24.1 is a billable ICD-10-CM diagnosis code for genetic torsion dystonia. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 56 through 57. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other nervous system disorders (often hereditary or degenerative).
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acquired torsion dystonia
- Adult-onset familial idiopathic dystonia
- Adult-onset sporadic primary dystonia
- Autosomal dominant dopa responsive dystonia
- Autosomal dominant focal dystonia DYT25 type
- Autosomal dominant idiopathic familial dystonia
- Autosomal recessive dopa responsive dystonia
- Autosomal recessive idiopathic familial dystonia
- CIMDAG syndrome
- Deafness-dystonia-optic neuronopathy syndrome
- Developmental delay, language impairment, dopa responsive dystonia, parkinsonism syndrome
- Disorder of manganese metabolism
- Diurnal dystonia
- Dystonia 6
- Dystonia aphonia syndrome
- Generalized dystonia
- Hypermanganesemia with dystonia
- Hypermanganesemia with dystonia, polycythemia, and cirrhosis
- Idiopathic familial dystonia
- IRF2BPL-related regressive neurodevelopmental disorder, dystonia, seizures syndrome
- Maternally inherited mitochondrial dystonia
- Partington syndrome
- Primary dystonia DYT17 type
- Primary dystonia type 4
- Primary torsion dystonia
- Torsion dystonia
- X-linked dystonia parkinsonism
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to G24.1: its own notes plus those printed at G24 and Chapter 6. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Dystonia deformans progressiva
- Dystonia musculorum deformans
- Familial torsion dystonia
- Idiopathic familial dystonia
- Idiopathic (torsion) dystonia NOS
- (Schwalbe-) Ziehen-Oppenheim disease
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disease, diseased See Also: Syndrome;
deformans progressiva G24.1
familial G24.1
idiopathic G24.1
familial G24.1
musculorum deformans G24.1
torsion (familial) (idiopathic) G24.1
genetic G24.1
Spasm (s), spastic, spasticity See Also: condition; R25.2
torsion (progressive) G24.1
Tortipelvis G24.1
Ziehen-Oppenheim disease G24.1
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Genetic Torsion Dystonia
an inherited dystonia that is characterized by abnormal postures and sustained muscle contractions leading to twisting or repetitive movements.Dystonia
an attitude or posture due to the co-contraction of agonists and antagonist muscles in one region of the body. it most often affects the large axial muscles of the trunk and limb girdles. conditions which feature persistent or recurrent episodes of dystonia as a primary manifestation of disease are referred to as dystonic disorders. (adams et al., principles of neurology, 6th ed, p77)
Patient EducationClinical
Dystonia
Dystonia is a movement disorder that causes involuntary contractions of your muscles. These contractions result in twisting and repetitive movements. Sometimes they are painful.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert G24.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About G24.1Overview
What is the ICD-10 code for genetic torsion dystonia?
The ICD-10-CM code for genetic torsion dystonia is G24.1 (sometimes written as G241). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is G24.1 (Dystonia) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report genetic torsion dystonia on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does G24.1 group to?
When genetic torsion dystonia is the principal diagnosis on an inpatient stay, it groups to MS-DRG 57, 56, with relative weights from 1.2835 to 2.2649 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of G24.1?
Under the General Equivalence Mappings, genetic torsion dystonia converts to ICD-9-CM 333.6 (genetic torsion dystonia). The mapping is a direct match.
