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ICD-10 Guide
ICD-10 CodesM66.24

M66.24

Billable

Spontaneous rupture of extensor tendons, hand

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

Code Description

ICD-10 M66.24 is a billable code used to indicate a diagnosis of spontaneous rupture of extensor tendons, hand.

Key Diagnostic Point:

Spontaneous rupture of extensor tendons in the hand is a condition characterized by the unexpected tearing of the extensor tendons, which are responsible for extending the fingers and wrist. This condition can occur without any significant trauma or injury, often seen in individuals with underlying conditions such as rheumatoid arthritis or chronic tenosynovitis. The rupture may lead to functional impairment, pain, and swelling in the affected area. Patients may present with an inability to extend the fingers or wrist, and a physical examination may reveal tenderness and swelling over the dorsal aspect of the hand. Imaging studies, such as ultrasound or MRI, may be utilized to confirm the diagnosis and assess the extent of the tendon damage. Treatment options vary based on the severity of the rupture and may include conservative management, such as splinting and physical therapy, or surgical intervention to repair the torn tendon. Surgical repair aims to restore function and alleviate pain, and rehabilitation is crucial for optimal recovery.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between spontaneous and traumatic ruptures
  • Understanding associated conditions like tenosynovitis
  • Documentation of clinical findings and imaging results
  • Variability in treatment approaches and their documentation

Audit Risk Factors

  • Inadequate documentation of the spontaneous nature of the rupture
  • Failure to document associated conditions like tenosynovitis
  • Lack of imaging results to support the diagnosis
  • Misclassification of the rupture type (spontaneous vs. traumatic)

Specialty Focus

Medical Specialties

Orthopedic Surgery

Documentation Requirements

Detailed operative reports, imaging studies, and post-operative notes are essential.

Common Clinical Scenarios

Surgical repair of ruptured extensor tendons following spontaneous rupture.

Billing Considerations

Ensure clear documentation of the surgical technique and any complications.

Rheumatology

Documentation Requirements

Comprehensive patient history, including underlying rheumatologic conditions and treatment plans.

Common Clinical Scenarios

Management of patients with rheumatoid arthritis presenting with tendon ruptures.

Billing Considerations

Document the relationship between the underlying condition and the tendon rupture.

Coding Guidelines

Inclusion Criteria

Use M66.24 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the spontaneous nature of the rupture
  • Include any relevant co
  • morbid conditions and treatment details
  • Ensure that the diagnosis is supported by clinical findings and imaging results

Exclusion Criteria

Do NOT use M66.24 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

26340CPT Code

Repair of extensor tendon

Clinical Scenario

Used when surgical repair is performed for a spontaneous rupture.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Orthopedic documentation must include pre-operative assessments and post-operative care plans.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of spontaneous tendon ruptures, improving the accuracy of patient records and facilitating better treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of spontaneous tendon ruptures, improving the accuracy of patient records and facilitating better treatment planning.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of spontaneous tendon ruptures, improving the accuracy of patient records and facilitating better 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 is the primary cause of spontaneous rupture of extensor tendons?

The primary cause is often related to underlying conditions such as rheumatoid arthritis or chronic tenosynovitis, which weaken the tendon structure over time.