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v1.0.0
ICD-10 Guide
ICD-10 CodesA19

A19

Miliary tuberculosis

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

Code Description

ICD-10 A19 is a used to indicate a diagnosis of miliary tuberculosis.

Key Diagnostic Point:

Miliary tuberculosis is a disseminated form of tuberculosis (TB) characterized by the presence of numerous small lesions resembling millet seeds in the lungs and other organs. It occurs when Mycobacterium tuberculosis spreads through the bloodstream, leading to widespread infection. Patients may present with nonspecific symptoms such as fever, night sweats, weight loss, and fatigue. Diagnostic methods include chest X-rays, which may show diffuse nodular opacities, and sputum tests, although sputum may not always be positive due to the nature of the disease. Additional tests such as CT scans and biopsy of affected tissues can aid in diagnosis. Treatment typically involves a prolonged course of multiple antitubercular medications, including isoniazid, rifampicin, pyrazinamide, and ethambutol, for at least six months. Monitoring for drug resistance is critical, as miliary TB can be associated with multidrug-resistant strains. Public health implications are significant, necessitating contact tracing and isolation procedures to prevent transmission, especially in high-risk populations.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Need for accurate diagnosis through multiple tests
  • Differentiation from other forms of tuberculosis
  • Potential for drug-resistant strains complicating treatment
  • Public health reporting requirements

Audit Risk Factors

  • Inadequate documentation of diagnostic tests performed
  • Failure to document treatment adherence and monitoring
  • Lack of public health reporting compliance
  • Misclassification of TB type

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed documentation of diagnostic tests, treatment plans, and follow-up care.

Common Clinical Scenarios

Patients presenting with systemic symptoms and confirmed TB exposure.

Billing Considerations

Consideration of drug resistance and public health implications in documentation.

Pulmonology

Documentation Requirements

Thorough pulmonary assessments, imaging results, and treatment response evaluations.

Common Clinical Scenarios

Patients with respiratory symptoms and abnormal imaging findings suggestive of miliary TB.

Billing Considerations

Documentation of lung function tests and any coexisting pulmonary conditions.

Coding Guidelines

Inclusion Criteria

Use A19 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the diagnosis, treatment, and any complications
  • Include specific details about the extent of disease and any associated conditions

Exclusion Criteria

Do NOT use A19 When
No specific exclusions found.

Related Codes

Child Codes

5 codes
A19.0
Acute miliary tuberculosis of a single specified site
A19.1
Acute miliary tuberculosis of multiple sites
A19.2
Acute miliary tuberculosis, unspecified
A19.8
Other miliary tuberculosis
A19.9
Miliary tuberculosis, unspecified

Related CPT Codes

71046CPT Code

Chest X-ray, 2 views

Clinical Scenario

Used to evaluate suspected miliary TB.

Documentation Requirements

Document the reason for the X-ray and findings.

Specialty Considerations

Pulmonologists should ensure imaging correlates with 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 miliary tuberculosis, improving data accuracy and facilitating better tracking of treatment outcomes and public health reporting.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of miliary tuberculosis, improving data accuracy and facilitating better tracking of treatment outcomes and public health reporting.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of miliary tuberculosis, improving data accuracy and facilitating better tracking of treatment outcomes and public health reporting.

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 miliary tuberculosis?

Common symptoms include fever, night sweats, weight loss, fatigue, and respiratory distress. Symptoms may vary based on the organs involved.