What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. 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 miliary tuberculosis in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
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.
- This entry may represent a broader category rather than the most specific billable code.
đź©şClinical context
When commonly used
- 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.
Common management context
- 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
Important notes
- 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 parent page groups disseminated miliary tuberculosis patterns, so the final billable code usually depends on whether the chart identifies acute miliary disease at a single site, multiple sites, another miliary pattern, or leaves the presentation unspecified.
- 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.
Related codes to consider
A19.0Acute miliary tuberculosis of a single specified site
Related miliary-tuberculosis ICD-10 code; documentation often becomes more specific when the chart identifies acute single-site versus multiple-site dissemination or clarifies another miliary pattern.
A19.1Acute miliary tuberculosis of multiple sites
Related miliary-tuberculosis ICD-10 code; documentation often becomes more specific when the chart identifies acute single-site versus multiple-site dissemination or clarifies another miliary pattern.
A19.2Acute miliary tuberculosis, unspecified
Related miliary-tuberculosis ICD-10 code; documentation often becomes more specific when the chart identifies acute single-site versus multiple-site dissemination or clarifies another miliary pattern.
A19.8Other miliary tuberculosis
Related miliary-tuberculosis ICD-10 code; documentation often becomes more specific when the chart identifies acute single-site versus multiple-site dissemination or clarifies another miliary pattern.
Code hierarchy
chapter
1Certain infectious and parasitic diseases (A00-B99)
block
A15-A19Tuberculosis
currentA15-A19
Official coding notes
Includes
- disseminated tuberculosis
- generalized tuberculosis
- tuberculous polyserositis
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
Infectious Disease SpecialistGeneral Physician
Related codes
Sibling codes
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
A19
Replacement codes
A19.0 — Acute miliary tuberculosis of a single specified siteA19.1 — Acute miliary tuberculosis of multiple sitesA19.2 — Acute miliary tuberculosis, unspecifiedA19.8 — Other miliary tuberculosisA19.9 — Miliary tuberculosis, unspecified
Common synonyms
Miliary tuberculosis
Frequently asked questions
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.