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ICD-10 Guide
ICD-10 CodesB69.81

B69.81

Myositis in cysticercosis

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 B69.81 is a billable code used to indicate a diagnosis of myositis in cysticercosis.

Key Diagnostic Point:

Myositis in cysticercosis is a rare but significant manifestation of cysticercosis, a parasitic infection caused by the larval stage of the Taenia solium tapeworm. This condition occurs when cysticerci invade muscle tissue, leading to inflammation and muscle pain. The clinical presentation may include localized swelling, tenderness, and muscle weakness, often mimicking other inflammatory myopathies. Diagnosis is typically confirmed through imaging studies such as MRI or CT scans, which reveal cystic lesions within the muscle. Laboratory tests may also be performed to detect antibodies against the cysticercus. Treatment primarily involves antiparasitic medications such as albendazole or praziquantel, which target the cysticerci, alongside symptomatic management for myositis. Early diagnosis and treatment are crucial to prevent complications, including muscle atrophy and chronic pain. Given the potential for misdiagnosis, awareness of this condition is essential for healthcare providers, particularly in endemic regions.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiation from other myositis conditions
  • Need for specific diagnostic imaging
  • Potential for co-infections complicating the diagnosis
  • Variability in clinical presentation

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to document imaging results
  • Misclassification of myositis type
  • Lack of clarity on treatment administered

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, including travel history and exposure to endemic areas, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with muscle pain and swelling after travel to endemic regions.

Billing Considerations

Consideration of co-infections and other parasitic diseases that may present similarly.

Neurology

Documentation Requirements

Neurological examination findings, imaging studies, and response to treatment.

Common Clinical Scenarios

Patients with neurological symptoms alongside myositis, requiring differential diagnosis.

Billing Considerations

Need for comprehensive neurological assessment to rule out other causes of myositis.

Coding Guidelines

Inclusion Criteria

Use B69.81 When
  • According to ICD
  • 10 guidelines, B69
  • 81 should be used when myositis is specifically linked to cysticercosis
  • Coders must ensure that the diagnosis is supported by appropriate clinical documentation and imaging results

Exclusion Criteria

Do NOT use B69.81 When
No specific exclusions found.

Related CPT Codes

86800CPT Code

Antibody test for cysticercosis

Clinical Scenario

Used when serological testing is required to confirm diagnosis.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Infectious disease specialists should ensure comprehensive testing.

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 myositis in cysticercosis, 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 myositis in cysticercosis, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    CDC - Cysticercosis

Coding & Billing References

  • •
    CDC - Cysticercosis

Frequently Asked Questions

What are the common symptoms of myositis in cysticercosis?

Common symptoms include muscle pain, swelling, tenderness, and weakness, often localized to the affected muscle groups.

How is myositis in cysticercosis diagnosed?

Diagnosis is typically made through imaging studies such as MRI or CT scans, along with serological tests to detect antibodies against the cysticerci.

What treatments are available for myositis in cysticercosis?

Treatment usually involves antiparasitic medications like albendazole or praziquantel, along with symptomatic management for muscle inflammation.