Is ICD-10-CM code R26 billable?

No, R26 (Abnormalities of gait and mobility) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code R26 belong to?

R26 belongs to Chapter 18 of the ICD-10-CM tabular list: R00–R99 (Symptoms, Signs and Abnormal Clinical and Laboratory Findings).

R26Not billable, use a more specific code below

Abnormalities of gait and mobility

In Symptoms and signs involving the nervous and musculoskeletal systems (R25-R29), chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings

6 billable codes under R26: none are a CC or MCC; none map to an HCC.

Instructional notes

Excludes1: not coded here, use a different code

ataxia NOS (R27.0)
hereditary ataxia (G11.-)
locomotor (syphilitic) ataxia (A52.11)
immobility syndrome (paraplegic) (M62.3)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers when to report symptom, sign, and abnormal finding codes (R00-R99), plus specific rules for falls, coma scales, non-infectious SIRS, death NOS, and NIHSS scores.

Use of symptom codes (page 75)
Use of a symptom code with a definitive diagnosis code (page 75)
Combination codes that include symptoms (page 75)
Repeated falls (page 76)
Coma (page 76)
Functional quadriplegia (page 76)
SIRS due to Non-Infectious Process (page 77)
Death NOS (page 77)

Read Section I.C.18 (page 75), 1 more topics

All codes under R26

R26 can't be used on a claim. Pick a billable code below; grey headings group them.

R26 MS-DRGs

As the principal diagnosis, the billable codes under R26 group to MS-DRG 091, 092, 093, 555, or 556 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 091 Other Disorders of Nervous System with MCC (5 of 6 codes)
DRG 092 Other Disorders of Nervous System with CC (5 of 6 codes)
DRG 093 Other Disorders of Nervous System without CC/MCC (5 of 6 codes)
DRG 555 Signs and Symptoms of Musculoskeletal System and Connective Tissue with MCC (1 of 6 codes)
DRG 556 Signs and Symptoms of Musculoskeletal System and Connective Tissue without MCC (1 of 6 codes)

Other codes that refer to R26

Notes on these codes point to R26.

F82 Excludes1: abnormalities of gait and mobility (R26.-)
M25 Excludes2: abnormality of gait and mobility (R26.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Walking Problems

If you are like most people, you walk thousands of steps each day. You walk to do your daily activities, get around, and exercise. It's something that you usually don't think about. But for those people who have a problem with walking, daily life can be more difficult.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.