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v1.0.0
ICD-10 Guide
DiagnosesRight Below Knee Amputation

Right Below Knee Amputation

ICD-10 Coding for Right Below-Knee Amputation(Z89.511)

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

Diagnosis Overview

What is Right Below Knee Amputation?
Essential facts and insights about Right Below-Knee Amputation

Key Clinical Considerations:

  • Severe limb ischemia or trauma leading to amputation
  • Imaging studies showing bone or soft tissue damage
  • Decreased sensation or circulation in the affected limb

Clinical Information

Clinical Criteria & Documentation Requirements

  • Detailed patient history and physical examination
  • Indication for amputation and surgical consent
  • Post-operative care plan and follow-up instructions

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for coding amputations to ensure accuracy.
  • Common errors include incorrect laterality or missing documentation.

Code Exclusions

Important Exclusions

  • Congenital limb deficiencies, other amputations not involving the right below knee.
  • Alternative codes for complications or revisions.

Related ICD-10 Codes

Primary Codes
Z89.511
Acquired absence of right lower leg
Z89.519
Acquired absence of lower leg, unspecified
Ancillary Codes
E11.9
I73.9
Differential Codes
Z89.519
Z89.511
when laterality is confirmed; use
Z89.519
only if laterality cannot be determined.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Orthopedic Surgery

Specialty Applications

  • Patients with peripheral vascular disease, diabetes, or traumatic injuries.
  • Orthopedic surgery and rehabilitation 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?

Include detailed surgical notes, indication for amputation, and post-operative care.

Billing considerations?

Ensure correct coding of the procedure and diagnosis to avoid claim denials.