ICD-10 Guide

Left Ankle Sprain

ICD-10 Coding for Left Ankle Sprain(S93.402A, S93.422A)

PRIMARY SPECIALTYEmergency Medicine

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Left Ankle Sprain?

Essential facts and insights about Left Ankle Sprain

Key Clinical Considerations:

Pain and swelling around the ankle joint
Bruising or discoloration
Limited range of motion
Instability of the ankle
Tenderness on palpation

Clinical Information

Clinical Criteria & Documentation Requirements

Patient history including mechanism of injury
Physical examination findings
Assessment of severity (grade I, II, III)
Treatment plan and follow-up instructions

Coding Guidelines

Usage Guidelines & Examples

Usage guidelines: Use specific codes based on the side and severity of the sprain.
Common errors: Failing to document the mechanism of injury or using unspecified codes.

Code Exclusions

Important Exclusions

Fractures of the ankle
Chronic ankle instability
Other ligament injuries

Specialty Focus

Primary Specialty

Emergency Medicine

Specialty Applications

Athletes, active individuals, and elderly patients
Emergency departments and urgent care settings

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

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

Documentation requirements?

Document the mechanism of injury, physical exam findings, and treatment provided.

Billing considerations?

Ensure accurate coding based on the severity and laterality of the sprain.

Left Ankle Sprain

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

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?

Left Ankle Sprain

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

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?