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ICD-10 Guide
ICD-10 CodesM66.119

M66.119

Billable

Rupture of synovium, unspecified shoulder

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

Code Description

ICD-10 M66.119 is a billable code used to indicate a diagnosis of rupture of synovium, unspecified shoulder.

Key Diagnostic Point:

Rupture of the synovium in the shoulder joint is a condition characterized by the tearing of the synovial membrane, which lines the joint and produces synovial fluid. This membrane plays a crucial role in joint lubrication and nourishment of the cartilage. A rupture can occur due to acute trauma, repetitive stress, or underlying inflammatory conditions such as rheumatoid arthritis or tenosynovitis. Symptoms typically include localized pain, swelling, and reduced range of motion in the shoulder. Diagnosis is often confirmed through imaging studies such as MRI or ultrasound, which can visualize the extent of the rupture and any associated tendon injuries. Treatment may involve conservative measures such as rest, ice, and physical therapy, or more invasive options like corticosteroid injections or surgical repair, depending on the severity of the rupture and the patient's overall health. Surgical intervention may involve synovectomy or repair of any associated tendon injuries, particularly if there is concurrent tenosynovitis or tendon rupture.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of symptoms
  • Potential for concurrent conditions such as tenosynovitis or tendon ruptures
  • Need for precise documentation of the mechanism of injury
  • Differentiation from other shoulder conditions like bursitis or arthritis

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify the side of the shoulder affected
  • Lack of imaging studies to support the diagnosis
  • Inconsistent treatment documentation

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed notes on the patient's history, physical examination findings, imaging results, and treatment plan.

Common Clinical Scenarios

Patients presenting with shoulder pain after a fall or repetitive overhead activity.

Billing Considerations

Ensure documentation reflects the specific nature 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 a history of rheumatoid arthritis presenting with acute shoulder pain.

Billing Considerations

Document any systemic symptoms or laboratory findings that may indicate an underlying rheumatologic condition.

Coding Guidelines

Inclusion Criteria

Use M66.119 When
  • According to ICD
  • 10 coding guidelines, M66
  • 119 should be used when the rupture of the synovium is confirmed but not specified as right or left
  • Coders should ensure that the documentation supports the diagnosis and that any associated conditions are also coded appropriately

Exclusion Criteria

Do NOT use M66.119 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

29806CPT Code

Arthroscopy, shoulder, surgical

Clinical Scenario

Used when surgical intervention is performed to repair the ruptured synovium.

Documentation Requirements

Operative report detailing the procedure, findings, and any repairs made.

Specialty Considerations

Orthopedic surgeons must document the extent of the rupture and any associated procedures 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 claims and enhancing data collection for research and quality improvement.

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 claims and enhancing data collection for research and quality improvement.

Reimbursement & Billing Impact

reimbursement.

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 M66.119 and M66.118?

M66.119 is used for unspecified shoulder synovial rupture, while M66.118 specifies a rupture in the right shoulder. Accurate coding depends on the documentation provided.