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ICD-10 Guide
ICD-10 CodesM22.00

M22.00

Billable

Recurrent dislocation of patella, unspecified knee

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/17/2025

Code Description

ICD-10 M22.00 is a billable code used to indicate a diagnosis of recurrent dislocation of patella, unspecified knee.

Key Diagnostic Point:

Recurrent dislocation of the patella is a condition characterized by repeated episodes of the kneecap (patella) dislocating from its normal position in the knee joint. This condition can lead to significant pain, instability, and functional impairment. The dislocation often occurs laterally, and patients may experience a 'giving way' sensation in the knee. Internal derangements such as meniscal tears or ligament injuries, particularly involving the medial patellofemoral ligament, can contribute to the instability of the patella. Patients may present with swelling, tenderness, and difficulty in performing activities that require knee flexion or weight-bearing. Arthroscopic procedures may be indicated for diagnosis and treatment, including lateral release, medial patellofemoral ligament reconstruction, or meniscal repair if associated tears are present. Accurate coding requires careful documentation of the recurrent nature of the dislocation, any associated injuries, and the specific treatment provided.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in documentation of recurrent episodes
  • Need for differentiation from acute dislocation codes
  • Potential for associated meniscal or ligament injuries
  • Variability in treatment approaches (surgical vs. conservative)

Audit Risk Factors

  • Inadequate documentation of recurrent episodes
  • Failure to document associated injuries
  • Misuse of acute dislocation codes instead of recurrent
  • Lack of clarity in treatment plans

Specialty Focus

Medical Specialties

Orthopedic Surgery

Documentation Requirements

Detailed history of dislocations, physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with recurrent knee instability, previous surgical history, or those requiring arthroscopic intervention.

Billing Considerations

Ensure documentation reflects the recurrent nature and any associated injuries to support the use of M22.00.

Physical Therapy

Documentation Requirements

Assessment of functional limitations, treatment goals, and progress notes.

Common Clinical Scenarios

Patients undergoing rehabilitation post-surgery or those with conservative management for recurrent dislocation.

Billing Considerations

Document specific exercises and progress to support the treatment plan and necessity for therapy.

Coding Guidelines

Inclusion Criteria

Use M22.00 When
  • Follow official ICD
  • CM guidelines for coding recurrent conditions
  • Ensure documentation supports the recurrent nature and any associated injuries
  • Include details of treatment and follow
  • up care

Exclusion Criteria

Do NOT use M22.00 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

29888CPT Code

Arthroscopy, knee, surgical; with lateral release

Clinical Scenario

Used for patients undergoing surgery for recurrent dislocation of the patella.

Documentation Requirements

Document indication for surgery, pre-operative assessments, and post-operative care.

Specialty Considerations

Orthopedic surgeons should ensure all surgical notes are detailed and reflect the necessity of the procedure.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of recurrent dislocations, improving the ability to track and manage these conditions effectively.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of recurrent dislocations, improving the ability to track and manage these conditions effectively.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of recurrent dislocations, improving the ability to track and manage these conditions effectively.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the difference between M22.00 and S83.0?

M22.00 is used for recurrent dislocations of the patella, while S83.0 is for acute dislocations. Accurate documentation is essential to determine the correct code.