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v1.0.0
ICD-10 Guide
DiagnosesFoot Ulcer

Foot Ulcer

ICD-10 Coding for Foot Ulcer(E10.621, E11.621, L97.4-)

PRIMARY SPECIALTYEndocrinology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Foot Ulcer?
Essential facts and insights about Foot Ulcer

Key Clinical Considerations:

  • Presence of non-healing ulcer on foot
  • Signs of infection (redness, swelling, discharge)
  • Neuropathy or peripheral vascular disease history

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including diabetes management
  • Detailed description of ulcer size and depth
  • Assessment of vascular and neurological status

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for coding diabetic foot ulcers based on type of diabetes.
  • Common errors include using incorrect diabetes type codes or omitting ulcer details.

Code Exclusions

Important Exclusions

  • Pressure ulcers (L89.x codes)
  • Other specified ulcers not related to diabetes

Related ICD-10 Codes

Primary Codes
E11.621
Type 2 diabetes mellitus with foot ulcer
E10.621
Type 1 diabetes mellitus with foot ulcer
Ancillary Codes
Z79.4
Differential Codes
L89.-

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Endocrinology

Specialty Applications

  • Patients with diabetes, particularly those with neuropathy or vascular issues.
  • Endocrinology clinics, wound care centers, and primary 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

What are the documentation requirements?

Document the ulcer's size, depth, and any signs of infection.

What are the billing considerations?

Ensure accurate coding based on the type of diabetes and ulcer characteristics.