ICD-10-CM 2027
ICD-10 code for Restless legs
From the official ICD-10-CM alphabetic index entry “Restless legs (syndrome)”. Page updated September 29, 2026.
About coding Restless legs
The ICD-10-CM code for Restless legs is G25.81 (Restless legs syndrome).
Within G25.8 (other specified extrapyramidal and movement disorders), G25.81 is specifically for Restless legs syndrome. Related codes cover Stiff-man syndrome (G25.82), benign shuddering attacks (G25.83) and other specified extrapyramidal and movement disorders (G25.89).
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 056 (Degenerative Nervous System Disorders with MCC, relative weight 2.2655) and DRG 057 (Degenerative Nervous System Disorders without MCC, relative weight 1.2838), 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 Restless legs ICD-10 codes
What is the ICD-10 code for Restless legs?
- G25.81 — Restless legs syndrome.
Is G25.81 billable?
- Yes. G25.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G25.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G25.81 as a principal diagnosis.
Is G25.81 a CC or MCC?
- No. G25.81 is neither a CC nor an MCC under MS-DRG v44.0.