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ICD-10 Guide
ICD-10 CodesM66.211

M66.211

Billable

Spontaneous rupture of extensor tendons, right shoulder

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

Code Description

ICD-10 M66.211 is a billable code used to indicate a diagnosis of spontaneous rupture of extensor tendons, right shoulder.

Key Diagnostic Point:

The spontaneous rupture of extensor tendons in the right shoulder is a condition characterized by the unexpected tearing of the tendons that extend the arm at the shoulder joint. This condition can occur due to various factors, including degenerative changes, chronic overuse, or acute trauma. Patients may present with sudden pain, swelling, and loss of function in the affected shoulder. The extensor tendons are crucial for arm movement, and their rupture can significantly impair daily activities. Diagnosis typically involves a thorough clinical examination, imaging studies such as MRI, and sometimes ultrasound to confirm the extent of the injury. Treatment options may include conservative management with physical therapy and anti-inflammatory medications, or surgical intervention to repair the ruptured tendon, depending on the severity of the injury and the patient's overall health. Accurate coding is essential for proper reimbursement and to reflect the complexity of the condition in medical records.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between spontaneous and traumatic ruptures
  • Understanding the specific anatomy of the extensor tendons
  • Documenting the right shoulder specifically versus other locations
  • Identifying associated conditions such as tenosynovitis

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify laterality (right vs. left)
  • Lack of imaging studies to support the diagnosis
  • Improper coding of associated conditions like tenosynovitis

Specialty Focus

Medical Specialties

Orthopedic Surgery

Documentation Requirements

Detailed operative reports, imaging results, and pre-operative assessments are necessary.

Common Clinical Scenarios

Patients presenting with acute shoulder pain and limited range of motion, often following a fall or repetitive overhead activities.

Billing Considerations

Ensure that all surgical interventions are documented, including the type of repair performed and any grafts used.

Physical Medicine and Rehabilitation

Documentation Requirements

Comprehensive evaluations including functional assessments and treatment plans.

Common Clinical Scenarios

Patients undergoing rehabilitation post-surgery or those with chronic pain due to tendon rupture.

Billing Considerations

Documenting the patient's progress and response to therapy is crucial for ongoing treatment coding.

Coding Guidelines

Inclusion Criteria

Use M66.211 When
  • According to ICD
  • 10 guidelines, M66
  • 211 should be used when the rupture is spontaneous and specifically involves the extensor tendons of the right shoulder
  • It is important to document the absence of trauma and any associated conditions that may affect treatment

Exclusion Criteria

Do NOT use M66.211 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

23470CPT Code

Repair of ruptured tendon, shoulder

Clinical Scenario

Used when surgical repair is performed for a spontaneous rupture of the extensor tendons.

Documentation Requirements

Operative report detailing the procedure, findings, and any grafts used.

Specialty Considerations

Orthopedic surgeons must ensure all aspects of the surgery are documented for accurate coding.

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 medical records and reimbursement processes. M66.211 provides a clear distinction from other types of tendon injuries, facilitating better patient management.

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 medical records and reimbursement processes. M66.211 provides a clear distinction from other types of tendon injuries, facilitating better patient management.

Reimbursement & Billing Impact

reimbursement processes. M66.211 provides a clear distinction from other types of tendon injuries, facilitating better patient management.

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 a specific injury or trauma, often due to degeneration or chronic overuse, while traumatic rupture results from a specific incident or injury.