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ICD-10 Guide
ICD-10 CodesM66.132

M66.132

Billable

Rupture of synovium, left wrist

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

Code Description

ICD-10 M66.132 is a billable code used to indicate a diagnosis of rupture of synovium, left wrist.

Key Diagnostic Point:

Rupture of the synovium in the left wrist refers to the tearing or disruption of the synovial membrane that lines the joints and tendon sheaths. This condition can arise from acute trauma, repetitive stress, or underlying inflammatory conditions such as rheumatoid arthritis. The synovium plays a crucial role in joint health by producing synovial fluid, which lubricates the joint and nourishes the cartilage. When the synovium ruptures, it can lead to pain, swelling, and decreased range of motion in the wrist. Patients may experience symptoms such as tenderness, warmth, and swelling around the wrist joint, often exacerbated by movement. Diagnosis typically involves a thorough clinical examination, imaging studies such as ultrasound or MRI, and sometimes aspiration of joint fluid for analysis. Treatment may include conservative measures like rest, ice, and anti-inflammatory medications, or more invasive options such as corticosteroid injections or surgical repair if conservative management fails. Understanding the underlying causes and appropriate management strategies is essential for effective treatment and recovery.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between acute and chronic conditions
  • Understanding associated conditions like tenosynovitis
  • Identifying the specific location of the rupture
  • Documenting the extent of the injury accurately

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify the location of the rupture
  • Lack of imaging studies to support the diagnosis
  • Inconsistent coding of associated conditions

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed notes on the mechanism of injury, physical examination findings, and imaging results.

Common Clinical Scenarios

Acute wrist injuries from falls, sports injuries, or repetitive strain injuries.

Billing Considerations

Ensure documentation reflects the severity of the rupture and any associated tendon injuries.

Rheumatology

Documentation Requirements

Comprehensive assessment of underlying inflammatory conditions and their impact on joint health.

Common Clinical Scenarios

Patients with rheumatoid arthritis experiencing exacerbations leading to synovial rupture.

Billing Considerations

Document the relationship between systemic disease and local joint pathology.

Coding Guidelines

Inclusion Criteria

Use M66.132 When
  • Follow official ICD
  • 10 guidelines for coding synovial disorders, ensuring accurate documentation of the rupture's location and any associated conditions
  • Include relevant clinical findings and imaging results to support the diagnosis

Exclusion Criteria

Do NOT use M66.132 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

29827CPT Code

Arthroscopy, wrist, diagnostic, with or without synovial biopsy

Clinical Scenario

Used when performing an arthroscopy to evaluate the extent of synovial damage.

Documentation Requirements

Document indications for the procedure and findings during the arthroscopy.

Specialty Considerations

Orthopedic surgeons should ensure detailed operative notes are provided.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of synovial disorders, improving the accuracy of data collection and reimbursement processes. M66.132 provides a clear distinction for left wrist injuries, enhancing clinical understanding and treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of synovial disorders, improving the accuracy of data collection and reimbursement processes. M66.132 provides a clear distinction for left wrist injuries, enhancing clinical understanding and treatment planning.

Reimbursement & Billing Impact

reimbursement processes. M66.132 provides a clear distinction for left wrist injuries, enhancing clinical understanding and treatment planning.

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 are the common causes of synovial rupture?

Common causes include acute trauma, repetitive strain injuries, and underlying inflammatory conditions such as rheumatoid arthritis.

How is a synovial rupture diagnosed?

Diagnosis typically involves a clinical examination, imaging studies like ultrasound or MRI, and sometimes aspiration of joint fluid.

What treatments are available for synovial rupture?

Treatment options range from conservative measures like rest and anti-inflammatories to surgical interventions if conservative management fails.