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ICD-10 Guide
ICD-10 CodesM67.371

M67.371

Billable

Transient synovitis, right ankle and foot

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

Code Description

ICD-10 M67.371 is a billable code used to indicate a diagnosis of transient synovitis, right ankle and foot.

Key Diagnostic Point:

Transient synovitis is an inflammatory condition affecting the synovial membrane of the joints, particularly in the ankle and foot. This condition is characterized by temporary swelling and pain, often resulting from trauma or overuse. In the right ankle and foot, transient synovitis can lead to joint effusion, tenderness, and restricted range of motion. It is commonly seen in children and adolescents but can occur in adults as well. The etiology may include mechanical stress, infection, or autoimmune processes. Diagnosis typically involves clinical evaluation, imaging studies such as ultrasound or MRI, and sometimes aspiration of joint fluid to rule out other conditions. Treatment usually consists of rest, ice, compression, and elevation (RICE), along with non-steroidal anti-inflammatory drugs (NSAIDs) to manage pain and inflammation. In severe cases, corticosteroid injections may be considered. The prognosis is generally favorable, with most patients recovering fully without long-term complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating transient synovitis from other inflammatory joint conditions.
  • Need for precise documentation of symptoms and duration.
  • Potential overlap with other codes related to synovial disorders.
  • Variability in treatment approaches and their documentation.

Audit Risk Factors

  • Inadequate documentation of clinical findings.
  • Failure to specify laterality when applicable.
  • Misclassification of transient synovitis as a chronic condition.
  • Lack of supporting imaging or diagnostic tests.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed clinical notes including history, physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with joint pain and swelling after sports injuries or falls.

Billing Considerations

Orthopedic specialists should ensure that all relevant imaging studies are documented to support the diagnosis.

Pediatrics

Documentation Requirements

Thorough documentation of growth and development, as well as family history of joint disorders.

Common Clinical Scenarios

Children with acute onset of limping and joint pain, often following minor trauma.

Billing Considerations

Pediatricians should be aware of the differential diagnoses, including septic arthritis and osteomyelitis.

Coding Guidelines

Inclusion Criteria

Use M67.371 When
  • According to ICD
  • 10 coding guidelines, M67
  • 371 should be used when the condition is specifically diagnosed as transient synovitis of the right ankle and foot
  • Coders must ensure that the diagnosis is supported by clinical documentation and that other potential causes of joint pain are ruled out

Exclusion Criteria

Do NOT use M67.371 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 joint effusion is present and aspiration is performed.

Documentation Requirements

Document the indication for the procedure, including symptoms and imaging findings.

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

Reimbursement & Billing Impact

reimbursement and compliance.

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 treatment for transient synovitis?

The primary treatment includes rest, ice, compression, and elevation (RICE), along with NSAIDs for pain relief. In some cases, corticosteroid injections may be necessary.

How can transient synovitis be differentiated from septic arthritis?

Transient synovitis typically presents with milder symptoms and is often associated with a recent history of trauma. Septic arthritis usually presents with severe pain, fever, and systemic symptoms, requiring immediate medical attention.