Abnormalities of gait and mobility (R26) ICD-10-CM
The R26 code range covers abnormalities of gait and mobility with 8 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the R26 Range 8 codes · 6 billable
- R26 Abnormalities of gait and mobilityNon-billable
- R26.0 Ataxic gait
- R26.1 Paralytic gait
- R26.2 Difficulty in walking, not elsewhere classified
- R26.8 Other abnormalities of gait and mobilityNon-billable
- R26.81 Unsteadiness on feet
- R26.89 Other abnormalities of gait and mobility
- R26.9 Unspecified abnormalities of gait and mobility
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the R26 range.
Ataxic Gait
Ambulatory abnormalities caused by an impairment of voluntary muscle coordination, most often and significantly affecting gait.
About the R26 Code Range
These codes describe abnormal walking patterns and problems with walking or moving.
R26.0 and R26.1 identify different gait patterns. R26.2 describes difficulty walking. Under R26.8, the codes separate unsteadiness on feet (R26.81) from other gait or mobility abnormalities (R26.89). R26.9 describes an unspecified abnormality of gait or mobility.
Someone may describe these problems as difficulty managing stairs or being unable to balance when standing.
Questions About This Page
How many billable codes are in the R26 range?
Of the 8 codes in this range, 6 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the R26 range classify?
The range classifies abnormalities of gait and mobility. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
