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ICD-10 Guide
ICD-10 CodesM66.143

M66.143

Billable

Rupture of synovium, unspecified hand

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

Code Description

ICD-10 M66.143 is a billable code used to indicate a diagnosis of rupture of synovium, unspecified hand.

Key Diagnostic Point:

Rupture of the synovium in the hand refers to the tearing or disruption of the synovial membrane, which is a thin layer of tissue that lines the joints and tendon sheaths. This condition can arise from various causes, including trauma, repetitive strain, or underlying inflammatory conditions such as rheumatoid arthritis. The synovium plays a crucial role in joint health by producing synovial fluid, which lubricates the joints and nourishes the cartilage. When the synovium ruptures, it can lead to pain, swelling, and decreased range of motion in the affected hand. Patients may present with symptoms such as localized tenderness, swelling, and difficulty in performing daily activities. Diagnosis typically involves a thorough clinical examination, imaging studies like ultrasound or MRI, and sometimes aspiration of joint fluid for analysis. Treatment options may include conservative management with rest, ice, and anti-inflammatory medications, or surgical intervention to repair the ruptured synovium if conservative measures fail. Understanding the underlying cause of the rupture is essential for effective management and prevention of recurrence.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and underlying causes
  • Need for precise documentation of symptoms and treatment
  • Differentiation from other synovial disorders
  • Potential for co-existing conditions affecting coding

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify laterality when applicable
  • Lack of detailed treatment plans or follow-up care
  • Misclassification of the condition as a different synovial disorder

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Patients presenting with acute hand injuries, chronic pain due to repetitive strain, or post-surgical complications.

Billing Considerations

Ensure clear documentation of any surgical interventions performed, including the type of repair and any associated procedures.

Rheumatology

Documentation Requirements

Comprehensive assessment of underlying inflammatory conditions, including lab results and treatment history.

Common Clinical Scenarios

Patients with rheumatoid arthritis experiencing synovial rupture due to disease progression.

Billing Considerations

Document any systemic symptoms or comorbidities that may influence treatment and coding.

Coding Guidelines

Inclusion Criteria

Use M66.143 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the condition's specifics, including laterality and any associated conditions
  • Use additional codes for related diagnoses or complications as necessary

Exclusion Criteria

Do NOT use M66.143 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

26160CPT Code

Excision of synovial cyst, hand

Clinical Scenario

Used when a patient undergoes surgery for a ruptured synovium.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Orthopedic surgeons should document the extent of the rupture and any repairs performed.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like synovial ruptures, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like synovial ruptures, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

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 a synovial rupture and a tendon rupture?

A synovial rupture involves the tearing of the synovial membrane, while a tendon rupture refers to the tearing of the tendon itself. They are distinct conditions with different implications for treatment and coding.