ICD-10-CM 2027
ICD-10 code for Dystonic movements
From the official ICD-10-CM alphabetic index entry “Dystonic movements”. Page updated September 29, 2026.
About coding Dystonic movements
The ICD-10-CM code for Dystonic movements is R25.8 (Other abnormal involuntary movements).
Within R25, choose R25.8 (Other abnormal involuntary movements) only when documentation doesn't support a more specific option: abnormal head movements (R25.0), tremor, unspecified (R25.1), cramp and spasm (R25.2), Fasciculation (R25.3) and unspecified abnormal involuntary movements (R25.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 091 (Other Disorders of Nervous System with MCC, relative weight 1.7046), DRG 092 (Other Disorders of Nervous System with CC, relative weight 1.0239) and DRG 093 (Other Disorders of Nervous System without CC/MCC, relative weight 0.7783), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Dystonic movements ICD-10 codes
What is the ICD-10 code for Dystonic movements?
- R25.8 — Other abnormal involuntary movements.
Is R25.8 billable?
- Yes. R25.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R25.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R25.8 as a principal diagnosis.
Is R25.8 a CC or MCC?
- No. R25.8 is neither a CC nor an MCC under MS-DRG v44.0.