ICD-10-CM 2027
ICD-10 code for Stiff-man syndrome
From the official ICD-10-CM alphabetic index entry “Stiff-man syndrome”. Page updated September 29, 2026.
About coding Stiff-man syndrome
The ICD-10-CM code for Stiff-man syndrome is G25.82 (Stiff-man syndrome).
Within G25.8 (other specified extrapyramidal and movement disorders), G25.82 is specifically for Stiff-man syndrome. Related codes cover Restless legs syndrome (G25.81), benign shuddering attacks (G25.83) and other specified extrapyramidal and movement disorders (G25.89).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
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 Stiff-man syndrome ICD-10 codes
What is the ICD-10 code for Stiff-man syndrome?
- G25.82 — Stiff-man syndrome.
Is G25.82 billable?
- Yes. G25.82 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G25.82 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G25.82 as a principal diagnosis.
Is G25.82 a CC or MCC?
- G25.82 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.