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 CodesM67.251

M67.251

Billable

Synovial hypertrophy, not elsewhere classified, right thigh

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

Code Description

ICD-10 M67.251 is a billable code used to indicate a diagnosis of synovial hypertrophy, not elsewhere classified, right thigh.

Key Diagnostic Point:

Synovial hypertrophy refers to the abnormal enlargement of the synovial membrane, which lines the joints and tendon sheaths. This condition can occur due to various underlying factors, including inflammatory processes, trauma, or chronic mechanical stress. In the case of the right thigh, synovial hypertrophy may be associated with conditions such as tenosynovitis, where the tendon sheath becomes inflamed, leading to pain and restricted movement. The hypertrophy can result in the accumulation of synovial fluid, further contributing to joint swelling and discomfort. Clinically, patients may present with localized pain, tenderness, and swelling in the thigh region, particularly around the knee or hip joints. Diagnosis typically involves a combination of physical examination, imaging studies such as ultrasound or MRI, and sometimes aspiration of the joint to analyze synovial fluid. Treatment may include conservative measures like rest, ice, and anti-inflammatory medications, or more invasive options such as corticosteroid injections or surgical intervention if conservative management fails.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between various types of synovial disorders
  • Understanding the relationship between synovial hypertrophy and other conditions like tenosynovitis
  • Need for precise documentation of symptoms and clinical findings
  • Potential for overlapping codes in similar conditions

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to specify laterality (right vs. left)
  • Misclassification of synovial disorders
  • Lack of supporting imaging or diagnostic tests

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed notes on physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with joint pain, swelling, and limited range of motion due to synovial hypertrophy.

Billing Considerations

Ensure clear documentation of the affected joint and any associated conditions.

Rheumatology

Documentation Requirements

Comprehensive assessment of inflammatory markers and patient history.

Common Clinical Scenarios

Patients with chronic inflammatory conditions leading to synovial hypertrophy.

Billing Considerations

Document any systemic symptoms and laboratory findings that support the diagnosis.

Coding Guidelines

Inclusion Criteria

Use M67.251 When
  • According to ICD
  • 10 guidelines, M67
  • 251 should be used when synovial hypertrophy is confirmed and not classified elsewhere
  • Documentation must support the diagnosis, including clinical findings and any imaging results

Exclusion Criteria

Do NOT use M67.251 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

20610CPT Code

Arthrocentesis, aspiration and/or injection into a major joint or bursa

Clinical Scenario

Used when a patient presents with joint swelling and pain, and aspiration is performed to relieve pressure.

Documentation Requirements

Document the indication for the procedure, findings from the aspiration, and any subsequent treatment.

Specialty Considerations

Orthopedic specialists should ensure that the procedure is justified based on clinical findings.

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 hypertrophy, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like synovial hypertrophy, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like synovial hypertrophy, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and resource allocation.

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 are the common causes of synovial hypertrophy?

Common causes include inflammatory conditions such as rheumatoid arthritis, mechanical stress from repetitive activities, and trauma to the joint or tendon sheath.