ICD-10-CM 2027
ICD-10 code for Unsteadiness gait abnormality
From the official ICD-10-CM alphabetic index entry “Gait abnormality › unsteadiness”. Page updated September 29, 2026.
About coding Unsteadiness gait abnormality
The ICD-10-CM code for Unsteadiness gait abnormality is R26.81 (Unsteadiness on feet).
Within R26.8 (other abnormalities of gait and mobility), R26.81 is specifically for Unsteadiness on feet. Related codes cover other abnormalities of gait and mobility (R26.89).
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 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 Unsteadiness gait abnormality ICD-10 codes
What is the ICD-10 code for Unsteadiness gait abnormality?
- R26.81 — Unsteadiness on feet.
Is R26.81 billable?
- Yes. R26.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R26.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R26.81 as a principal diagnosis.
Is R26.81 a CC or MCC?
- No. R26.81 is neither a CC nor an MCC under MS-DRG v44.0.