ICD-10 Code G24.3 – Spasmodic torticollis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G24.3 – Spasmodic torticollis
What it is
G24.3 identifies spasmodic torticollis, also called cervical dystonia. It describes involuntary neck muscle contractions that cause abnormal head posture or twisting.
Clinical signs
Common findings include sustained or intermittent head turning, tilting, or pulling, often with neck pain or tremor. Clinical features vary; refer to documentation.
When to use this code
Use G24.3 when the provider documents spasmodic torticollis or cervical dystonia as the diagnosis. Apply it for acquired involuntary neck posturing clearly attributed to a dystonic disorder. Check documentation if the record only says neck spasm, stiffness, or torticollis without a dystonia diagnosis.
Do not use for
Do not use this code for congenital muscular torticollis, acute neck strain, or nonspecific muscle spasm. If the cause is unclear, check documentation.
Coding tip
Assign G24.3 only when the documentation supports a dystonic neck disorder, not merely a symptom of neck pain or stiffness.