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ICD-10 Guide
ICD-10 CodesA18.51

A18.51

Tuberculous episcleritis

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

Code Description

ICD-10 A18.51 is a billable code used to indicate a diagnosis of tuberculous episcleritis.

Key Diagnostic Point:

Tuberculous episcleritis is an inflammatory condition affecting the episclera, a thin layer of tissue covering the sclera (the white part of the eye), caused by Mycobacterium tuberculosis. This condition is often associated with systemic tuberculosis and can manifest as a localized or diffuse inflammation. Patients may present with symptoms such as redness, discomfort, and visual disturbances. Diagnosis typically involves a thorough clinical examination, including slit-lamp examination, and may be supported by imaging studies or laboratory tests to confirm the presence of tuberculosis. Treatment generally includes antitubercular therapy, which may involve a combination of isoniazid, rifampicin, ethambutol, and pyrazinamide, depending on the severity and extent of the disease. Monitoring for drug resistance is crucial, as multidrug-resistant tuberculosis (MDR-TB) can complicate treatment. Public health implications are significant, as tuberculous episcleritis may indicate active pulmonary or extrapulmonary tuberculosis, necessitating contact tracing and isolation procedures to prevent transmission. Regular follow-up is essential to assess treatment efficacy and manage any potential complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires knowledge of tuberculosis-related conditions and their ocular manifestations.
  • Involves understanding of systemic versus localized disease.
  • Documentation must clearly differentiate between tuberculous and non-tuberculous episcleritis.
  • Need for accurate coding based on clinical findings and diagnostic tests.

Audit Risk Factors

  • Inadequate documentation of tuberculosis diagnosis.
  • Failure to document the relationship between episcleritis and systemic tuberculosis.
  • Lack of evidence for treatment compliance and monitoring.
  • Misclassification of the condition as non-tuberculous episcleritis.

Specialty Focus

Medical Specialties

Ophthalmology

Documentation Requirements

Detailed clinical notes including symptoms, examination findings, and diagnostic tests.

Common Clinical Scenarios

Patients presenting with ocular symptoms and a history of tuberculosis.

Billing Considerations

Need for collaboration with infectious disease specialists for comprehensive management.

Infectious Disease

Documentation Requirements

Thorough documentation of tuberculosis diagnosis, treatment plans, and follow-up care.

Common Clinical Scenarios

Patients with systemic tuberculosis presenting with ocular manifestations.

Billing Considerations

Monitoring for drug resistance and public health reporting requirements.

Coding Guidelines

Inclusion Criteria

Use A18.51 When
  • According to ICD
  • 10 coding guidelines, A18
  • 51 should be used when there is clear documentation of tuberculous episcleritis, supported by clinical findings and diagnostic tests
  • It is essential to differentiate this condition from other forms of episcleritis and to document any underlying tuberculosis diagnosis

Exclusion Criteria

Do NOT use A18.51 When
No specific exclusions found.

Related CPT Codes

92002CPT Code

Ophthalmological examination, new patient

Clinical Scenario

Used for initial evaluation of a patient presenting with ocular symptoms.

Documentation Requirements

Comprehensive examination notes and history of tuberculosis.

Specialty Considerations

Ophthalmologists should document any systemic conditions affecting ocular health.

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 tuberculous episcleritis, improving the accuracy of data collection and treatment tracking. This specificity aids in better management of tuberculosis and its ocular manifestations.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like tuberculous episcleritis, improving the accuracy of data collection and treatment tracking. This specificity aids in better management of tuberculosis and its ocular manifestations.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like tuberculous episcleritis, improving the accuracy of data collection and treatment tracking. This specificity aids in better management of tuberculosis and its ocular manifestations.

Resources

Clinical References

  • •
    CDC Tuberculosis (TB) Fact Sheet

Coding & Billing References

  • •
    CDC Tuberculosis (TB) Fact Sheet

Frequently Asked Questions

What are the common symptoms of tuberculous episcleritis?

Common symptoms include redness of the eye, discomfort, and potential visual disturbances. Patients may also have a history of systemic tuberculosis.

How is tuberculous episcleritis diagnosed?

Diagnosis is made through clinical examination, imaging studies, and laboratory tests to confirm the presence of tuberculosis.

What treatment options are available for tuberculous episcleritis?

Treatment typically involves antitubercular therapy, which may include a combination of isoniazid, rifampicin, ethambutol, and pyrazinamide, depending on the patient's condition.