ICD-10 Code A19.2: Acute miliary tuberculosis, unspecified
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Certain infectious and parasitic diseases (A00-B99).
đź“‹Clinical overview
This ICD-10 code is commonly used when documentation describes miliary tuberculosis. The most accurate code depends on whether the chart identifies acute miliary disease of a single specified site, multiple sites, another miliary pattern, or an unspecified miliary-tuberculosis presentation.
When is it used?
- May be used when a clinician documents acute miliary tuberculosis, unspecified in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
đź©şClinical context
- Infectious-disease, pulmonary, inpatient, emergency, and follow-up documentation where disseminated tuberculosis is part of the active assessment or treatment plan.
- Coding and utilization-review workflows where the record distinguishes single-site versus multisite acute miliary tuberculosis or another disseminated pattern and that distinction changes final code specificity.
- Miliary-tuberculosis follow-up often includes microbiology and imaging review, symptom and organ-system monitoring, inpatient or infectious-disease management context, and treatment planning for disseminated disease.
- Documentation usually becomes more specific when the chart identifies acute presentation, clarifies whether dissemination is limited to a single specified site versus multiple sites, or better defines another miliary pattern.
- Specialist context already linked on this page includes Infectious Disease Specialist, General Physician.
🔍Key distinctions
- This ICD-10 family captures miliary tuberculosis and is distinct from localized pulmonary or extrapulmonary tuberculosis branches because disseminated spread is the defining feature.
- Extent-of-dissemination detail matters here, especially when the chart distinguishes acute miliary disease at one site from acute disease involving multiple sites.
- This title preserves acute miliary-tuberculosis extent detail as unspecified; if the chart identifies a single site versus multiple sites more clearly, a more specific acute miliary tuberculosis code may be used.
- Documentation that describes miliary tuberculosis is coded differently from localized pulmonary or extrapulmonary tuberculosis because disseminated hematogenous spread is the main specificity driver in this family.
Code hierarchy
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
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Coverage-related procedures and services
Mapped diagnoses and classifications
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About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.