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ICD-10 Guide
DiagnosesLeft Knee Patellofemoral Syndrome

Left Knee Patellofemoral Syndrome

ICD-10 Coding for Left Knee Patellofemoral Syndrome(M22.2X2, M25.562)

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

Diagnosis Overview

What is Left Knee Patellofemoral Syndrome?
Essential facts and insights about Left Knee Patellofemoral Syndrome

Key Clinical Considerations:

  • Anterior knee pain exacerbated by activities such as squatting, climbing stairs, or prolonged sitting.
  • Imaging may show patellar malalignment or cartilage degeneration.
  • Tenderness over the patellar tendon and crepitus during knee movement.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including onset, duration, and aggravating factors of knee pain.
  • Use of terms like 'patellofemoral pain syndrome' or 'chondromalacia patellae' in documentation.
  • Examples include detailed physical exam findings and imaging results.

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for distinguishing between patellofemoral syndrome and other knee conditions.
  • Common errors include misclassifying the severity or type of knee pain.

Code Exclusions

Important Exclusions

  • Excludes conditions like patellar tendinitis or osteoarthritis.
  • Alternative codes may include M17 for knee osteoarthritis.

Related ICD-10 Codes

Primary Codes
M22.4
Patellofemoral pain syndrome
Ancillary Codes
Y92.213
Differential Codes
M17.12
S83.242D

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Orthopedics

Specialty Applications

  • Common in adolescents and young adults, especially athletes.
  • Relevant in outpatient orthopedic clinics and sports medicine 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 patient history, physical exam findings, and imaging results.

Billing considerations?

Ensure accurate coding to reflect the diagnosis and any associated treatments.