R25.9 Unspecified abnormal involuntary movements

Billable ICD-10-CM code, FY2026.

Applies from R25 Abnormal involuntary movements

Excludes1 (never code together)

• specific movement disorders (G20-G26)
• stereotyped movement disorders (F98.4)
• tic disorders (F95.-)

MS-DRG index

Defines the logic of DRG(s) 091-093 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 781.0 Abnormal involuntary movements (approximate)

Code annotations containing back-references to R25.9

Back-references to R25

• Type 1 Excludes: F98.4 Stereotyped movement disorders ("abnormal involuntary movements (R25.-)")

Diagnosis Index entries for R25.9

• Abnormal, abnormality, abnormalities › movement (disorder) › involuntary
• Involuntary movement, abnormal

Nearby codes

• R25.0 Abnormal head movements
• R25.1 Tremor, unspecified
• R25.2 Cramp and spasm
• R25.3 Fasciculation
• R25.8 Other abnormal involuntary movements
• R25.9 Unspecified abnormal involuntary movements (this code)