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ICD-10 Guide
ICD-10 CodesM66.241

M66.241

Billable

Spontaneous rupture of extensor tendons, right hand

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

Code Description

ICD-10 M66.241 is a billable code used to indicate a diagnosis of spontaneous rupture of extensor tendons, right hand.

Key Diagnostic Point:

Spontaneous rupture of extensor tendons in the right 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 apparent trauma or injury, often associated with underlying conditions such as tenosynovitis or degenerative tendon changes. Patients may present with sudden loss of function in the affected fingers, swelling, pain, and a visible deformity. Diagnosis typically involves a thorough clinical examination and may be supported by imaging studies such as ultrasound or MRI to assess the extent of the rupture. Treatment often requires surgical intervention to repair the torn tendons, followed by rehabilitation to restore function. The prognosis is generally favorable if the injury is addressed promptly, although recovery can be prolonged depending on the severity of the rupture and the patient's adherence to rehabilitation protocols.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between spontaneous and traumatic ruptures
  • Understanding the anatomical specificity of extensor tendons
  • Identifying associated conditions like tenosynovitis
  • Documenting surgical interventions accurately

Audit Risk Factors

  • Inadequate documentation of the spontaneous nature of the rupture
  • Failure to document associated conditions like tenosynovitis
  • Incorrect coding of laterality
  • Lack of surgical documentation if repair is performed

Specialty Focus

Medical Specialties

Orthopedic Surgery

Documentation Requirements

Detailed operative reports, pre-operative assessments, and post-operative follow-ups.

Common Clinical Scenarios

Patients presenting with sudden loss of finger extension, swelling, and pain in the right hand.

Billing Considerations

Ensure clear documentation of the surgical procedure performed and any complications encountered.

Physical Therapy

Documentation Requirements

Progress notes detailing rehabilitation protocols and patient responses.

Common Clinical Scenarios

Patients undergoing rehabilitation post-surgery for tendon repair.

Billing Considerations

Document functional assessments and adherence to therapy protocols.

Coding Guidelines

Inclusion Criteria

Use M66.241 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the condition's spontaneous nature and laterality
  • Include any associated conditions such as tenosynovitis in the documentation

Exclusion Criteria

Do NOT use M66.241 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

26301CPT Code

Repair of extensor tendon

Clinical Scenario

Used when surgical repair of the ruptured extensor tendon is performed.

Documentation Requirements

Operative report detailing the procedure and any complications.

Specialty Considerations

Orthopedic surgeons should ensure accurate coding of the procedure 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 spontaneous tendon ruptures, improving the accuracy of patient records and facilitating better tracking of treatment outcomes.

ICD-9 vs ICD-10

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

Reimbursement & Billing Impact

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

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 spontaneous and traumatic tendon rupture?

Spontaneous tendon rupture occurs without any identifiable trauma, often due to underlying conditions, while traumatic rupture is a direct result of an injury or accident.