ICD-10 Guide

Total Knee Arthroplasty

ICD-10 Coding for Total Knee Arthroplasty(Z96.651, Z96.652, Z47.1)

PRIMARY SPECIALTYOrthopedics

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Total Knee Arthroplasty?

Essential facts and insights about Total Knee Arthroplasty

Key Clinical Considerations:

Severe knee pain affecting daily activities
Radiographic evidence of osteoarthritis or other degenerative joint disease
Limited range of motion and functional impairment

Clinical Information

Clinical Criteria & Documentation Requirements

Patient history and physical examination findings
Imaging studies (X-rays, MRI) results
Preoperative assessment and surgical consent

Coding Guidelines

Usage Guidelines & Examples

Follow guidelines for coding osteoarthritis versus other knee conditions.
Common errors include incorrect laterality or failure to document comorbidities.

Code Exclusions

Important Exclusions

Acute knee injuries requiring different interventions
Codes for knee arthroscopy or partial knee replacement

Specialty Focus

Primary Specialty

Orthopedics

Specialty Applications

Patients with severe knee osteoarthritis or joint deformities
Outpatient surgical centers and hospitals performing orthopedic surgeries

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?

Comprehensive patient history, physical exam, imaging results, and surgical consent must be documented.

What are the billing considerations?

Ensure correct coding of diagnosis and procedure, and verify insurance coverage for total knee arthroplasty.

Total Knee Arthroplasty

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

What are the documentation requirements?

What are the billing considerations?

Total Knee Arthroplasty

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

What are the documentation requirements?

What are the billing considerations?