R25.1 Tremor, unspecified

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• chorea NOS (G25.5)
• essential tremor (G25.0)
• hysterical tremor (F44.4)
• intention tremor (G25.2)

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 R25.1

Back-references to R25.1

• Type 1 Excludes: G25.0 Essential tremor ("tremor NOS (R25.1)")

Back-references to R25

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

Diagnosis Index entries for R25.1

• Abnormal, abnormality, abnormalities › movement (disorder) › involuntary › tremor
• Hemitremor
• Tremor (s)

Nearby codes

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