ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesM66.111

M66.111

Billable

Rupture of synovium, right shoulder

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

Code Description

ICD-10 M66.111 is a billable code used to indicate a diagnosis of rupture of synovium, right shoulder.

Key Diagnostic Point:

Rupture of the synovium in the right shoulder is a condition characterized by the tearing of the synovial membrane, which lines the joint capsule and produces synovial fluid. This injury can occur due to trauma, repetitive strain, or underlying inflammatory conditions such as rheumatoid arthritis. The synovium plays a crucial role in joint lubrication and nourishment, and its rupture can lead to pain, swelling, and decreased range of motion in the affected shoulder. Patients may present with symptoms such as localized tenderness, swelling, and crepitus during movement. Diagnosis typically involves a thorough clinical examination, imaging studies like MRI or ultrasound, and sometimes arthroscopy to visualize the joint. Treatment options may include conservative management with rest, ice, and anti-inflammatory medications, or surgical intervention to repair the synovium if conservative measures fail. Understanding the underlying causes and associated conditions is essential for effective management and coding.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between acute and chronic conditions
  • Identifying associated injuries or conditions (e.g., tendon ruptures)
  • Documentation of specific anatomical details
  • Understanding the implications of surgical versus non-surgical treatment

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify laterality
  • Lack of imaging or clinical evidence to support the diagnosis
  • Improper coding of associated conditions

Specialty Focus

Medical Specialties

Orthopedic Surgery

Documentation Requirements

Detailed operative reports, imaging studies, and pre-operative assessments.

Common Clinical Scenarios

Patients presenting with shoulder pain after trauma, athletes with repetitive shoulder use, and individuals with inflammatory joint diseases.

Billing Considerations

Ensure documentation reflects the extent of the injury and any surgical interventions performed.

Rheumatology

Documentation Requirements

Comprehensive history of joint symptoms, laboratory tests for inflammatory markers, and imaging results.

Common Clinical Scenarios

Patients with rheumatoid arthritis experiencing acute exacerbations or new joint symptoms.

Billing Considerations

Document the relationship between underlying rheumatologic conditions and synovial rupture.

Coding Guidelines

Inclusion Criteria

Use M66.111 When
  • Follow official ICD
  • CM guidelines for coding injuries, ensuring accurate documentation of laterality and associated conditions
  • Include any relevant external cause codes if applicable

Exclusion Criteria

Do NOT use M66.111 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

29806CPT Code

Arthroscopy, shoulder, diagnostic, with or without synovial biopsy

Clinical Scenario

Used when a patient undergoes arthroscopy for evaluation and potential repair of a ruptured synovium.

Documentation Requirements

Operative report detailing findings and procedures performed.

Specialty Considerations

Orthopedic surgeons must document the extent of the injury and any repairs made.

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 rupture, 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 rupture, 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 primary cause of synovial rupture?

Synovial rupture can be caused by acute trauma, repetitive stress, or underlying inflammatory conditions such as rheumatoid arthritis.

How is a synovial rupture diagnosed?

Diagnosis typically involves a clinical examination, imaging studies like MRI or ultrasound, and sometimes arthroscopy to visualize the joint.

What are the treatment options for a ruptured synovium?

Treatment may include conservative management with rest and anti-inflammatory medications or surgical intervention if conservative measures fail.