ICD-10 Guide

Abnormality Of Gait

ICD-10 Coding for Abnormality of Gait(R26.81, R26.0, R26.89)

PRIMARY SPECIALTYNeurology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Abnormality Of Gait?

Abnormality of gait refers to any deviation from normal walking patterns, which can arise from various neurological, musculoskeletal, or systemic conditions. Key clinical points include: 1) Gait abnormalities can be indicative of underlying neurological disorders such as Parkinson's disease, stroke, or multiple sclerosis. 2) Patients may present with symptoms such as limping, shuffling, or unsteady walking. 3) The etiology can range from congenital issues to acquired conditions due to injury or disease. 4) Pathophysiology often involves disruptions in the central nervous system's ability to coordinate movement. 5) Clinical presentation may include altered stride length, speed, and balance. Typical use cases for this diagnosis code include evaluations in neurology clinics, rehabilitation settings, and during pre-operative assessments for orthopedic surgeries.

Key Clinical Considerations:

Diagnosis requires a comprehensive neurological examination to assess motor function and coordination.
Signs may include ataxia, spasticity, or weakness, while symptoms can involve pain or fatigue during ambulation.
Resolution criteria may involve improvement in gait following targeted therapy or rehabilitation.
Imaging studies such as MRI or CT scans may reveal structural abnormalities, while gait analysis can provide functional insights.

Clinical Information

Clinical Criteria & Documentation Requirements

Documentation must include detailed patient history, physical examination findings, and any diagnostic tests performed.
Compliant documentation: 'Patient exhibits a shuffling gait with a history of Parkinson's disease.' Non-compliant: 'Patient has a gait issue.'
Template phrases: 'Patient diagnosed with abnormality of gait based on clinical findings of [specific symptoms].'
Medical necessity requires evidence of how the gait abnormality impacts the patient's daily functioning.

Coding Guidelines

Usage Guidelines & Examples

Use this code when a patient presents with gait abnormalities due to neurological conditions, such as post-stroke gait changes.
Do not use this code for gait abnormalities solely due to orthopedic issues like fractures or sprains.
Correct usage: 'Patient with abnormal gait due to multiple sclerosis.' Incorrect: 'Patient with a sprained ankle.'
Common errors include misclassifying the cause of gait abnormalities; ensure to document the underlying condition.

Code Exclusions

Important Exclusions

Excluded conditions include orthopedic injuries that do not involve neurological components, such as fractures.
Alternative codes for exclusions may include S82 (fracture of the tibia) if the gait abnormality is due to an injury.
Common exclusion errors include misclassifying orthopedic conditions as neurological; ensure accurate documentation.
Certain conditions are excluded to maintain specificity in coding and avoid misrepresentation of the patient's condition.

Specialty Focus

Primary Specialty

Neurology

Specialty Applications

This diagnosis applies to conditions like Parkinson's disease, stroke, and peripheral neuropathy.
Appropriate in clinical scenarios involving neurological assessments or rehabilitation evaluations.
Applicable in various practice settings, including outpatient neurology clinics and inpatient rehabilitation facilities.
Specialty-specific considerations include the need for detailed neurological assessments in neurology practices.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

Comprehensive clinical documentation
Accurate code selection based on clinical criteria
Proper exclusion considerations
Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Template: 'Abnormality of gait diagnosed based on clinical findings of [specific symptoms].'

Template 2

Template: 'Patient presents with unsteady gait consistent with [diagnosis].'

Template 3

Template: 'Diagnostic criteria met: [specific findings] observed during examination.'

Template 4

Template: 'Treatment plan includes [interventions] for gait improvement in [condition].'

Billing Information

Billing Considerations

Ensure proper documentation for billing
Verify code specificity requirements
Check for any additional codes needed
Review payer-specific guidelines

Common Issues

Insufficient clinical documentation
Incorrect code selection
Missing supporting diagnoses
Timing and frequency documentation

Frequently Asked Questions

What documentation is required for this code?

Comprehensive patient history, clinical findings, and any relevant imaging or tests.

When should this code be used vs similar codes?

Use this code for gait abnormalities specifically linked to neurological conditions.

What are common billing issues with this code?

Issues may arise from insufficient documentation; ensure clarity on the underlying cause.

What procedures are commonly associated?

Related CPT codes may include 97110 for therapeutic exercises aimed at improving gait.

What is Abnormality Of Gait?

Key Clinical Considerations:

Diagnosis requires a comprehensive neurological examination to assess motor function and coordination.
Signs may include ataxia, spasticity, or weakness, while symptoms can involve pain or fatigue during ambulation.
Resolution criteria may involve improvement in gait following targeted therapy or rehabilitation.
Imaging studies such as MRI or CT scans may reveal structural abnormalities, while gait analysis can provide functional insights.

Abnormality Of Gait

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Template 1

Template 2

Template 3

Template 4

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

What documentation is required for this code?

When should this code be used vs similar codes?

What are common billing issues with this code?

What procedures are commonly associated?

Abnormality Of Gait

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Template 1

Template 2

Template 3

Template 4

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

What documentation is required for this code?

When should this code be used vs similar codes?

What are common billing issues with this code?

What procedures are commonly associated?