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ICD-10 Guide
ICD-10 CodesM67.33

M67.33

Billable

Transient synovitis, wrist

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

Code Description

ICD-10 M67.33 is a billable code used to indicate a diagnosis of transient synovitis, wrist.

Key Diagnostic Point:

Transient synovitis of the wrist is a benign inflammatory condition characterized by the temporary inflammation of the synovial membrane surrounding the wrist joint. This condition is often seen in children and adolescents, typically presenting with pain, swelling, and limited range of motion in the affected wrist. The etiology is frequently idiopathic, but it can also be associated with trauma or overuse. Diagnosis is primarily clinical, supported by imaging studies such as ultrasound or MRI to assess synovial fluid accumulation and joint effusion. Treatment usually involves conservative management, including rest, ice application, and non-steroidal anti-inflammatory drugs (NSAIDs). In some cases, aspiration of the joint may be necessary to relieve symptoms. The prognosis is generally favorable, with most patients experiencing complete resolution of symptoms within a few weeks. However, it is crucial to differentiate transient synovitis from other more serious conditions such as septic arthritis or juvenile idiopathic arthritis, which may require more aggressive intervention.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiation from other synovial disorders
  • Potential overlap with tenosynovitis codes
  • Variability in clinical presentation
  • Need for precise documentation of symptoms and treatment

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to specify the duration of symptoms
  • Misclassification with more severe conditions
  • Lack of follow-up documentation

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed history of symptoms, physical examination findings, and treatment plan.

Common Clinical Scenarios

Children presenting with wrist pain after a fall or sports activity.

Billing Considerations

Consideration of growth plate involvement and differentiation from fractures.

Orthopedics

Documentation Requirements

Imaging results, surgical notes if applicable, and follow-up assessments.

Common Clinical Scenarios

Adults with wrist pain due to repetitive strain or injury.

Billing Considerations

Assessment for potential surgical intervention if conservative treatment fails.

Coding Guidelines

Inclusion Criteria

Use M67.33 When
  • According to ICD
  • 10 guidelines, M67
  • 33 should be used when the condition is specifically transient synovitis of the wrist
  • It is important to document the duration of symptoms and any treatments provided

Exclusion Criteria

Do NOT use M67.33 When
  • Exclusion criteria include conditions that are chronic or associated with significant joint damage

Related ICD-10 Codes

Related CPT Codes

20610CPT Code

Arthrocentesis, aspiration of a major joint or bursa

Clinical Scenario

Used when aspiration is performed to relieve joint effusion in transient synovitis.

Documentation Requirements

Document the indication for aspiration, the amount of fluid removed, and any findings.

Specialty Considerations

Orthopedic specialists may perform this procedure more frequently.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of transient synovitis, improving the accuracy of data collection and reimbursement processes. It has also facilitated better tracking of outcomes and treatment effectiveness.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of transient synovitis, improving the accuracy of data collection and reimbursement processes. It has also facilitated better tracking of outcomes and treatment effectiveness.

Reimbursement & Billing Impact

reimbursement processes. It has also facilitated better tracking of outcomes and treatment effectiveness.

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 primary treatment for transient synovitis?

The primary treatment includes rest, ice application, and NSAIDs to reduce inflammation and pain. In some cases, aspiration of the joint may be necessary.

How can transient synovitis be differentiated from septic arthritis?

Transient synovitis typically presents with a history of trauma or overuse, and imaging studies show joint effusion without signs of infection. Septic arthritis usually presents with fever, severe pain, and requires laboratory confirmation.