2027 ICD-10-CM Diagnosis Code A19.2Acute miliary tuberculosis, unspecified
ICD-10-CM Codes›A00–B99›A15-A19›A19
- Billable — Valid for Submission
- MCC — Major Complication or Comorbidity
- Not Chronic
A19.2 is a billable ICD-10-CM diagnosis code for acute miliary tuberculosis, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 867 through 869, 974 through 976. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 19 closely related codes. Coders also document this condition as acute miliary cutaneous tuberculosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Tuberculosis.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute miliary cutaneous tuberculosis
- Acute miliary tuberculosis
- Acute tuberculosis
- Disseminated tuberculosis
- Miliary tuberculosis
- Tuberculosis of skin
- Tuberculosis, extrapulmonary
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to A19.2: its own notes plus those printed at A19, block A15-A19, and Chapter 1. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- disseminated tuberculosis
- generalized tuberculosis
- tuberculous polyserositis
- infections due to Mycobacterium tuberculosis and Mycobacterium bovis
- diseases generally recognized as communicable or transmissible
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- congenital tuberculosis (P37.0)
- nonspecific reaction to test for tuberculosis without active tuberculosis (R76.1-)
- pneumoconiosis associated with tuberculosis, any type in A15 (J65)
- positive PPD (R76.11)
- positive tuberculin skin test without active tuberculosis (R76.11)
- sequelae of tuberculosis (B90.-)
- silicotuberculosis (J65)
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code, if applicable, for associated cachexia (E88.A)
- code to identify resistance to antimicrobial drugs (Z16.-)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name A19.2, its category, or a range that includes it.
Applicable To 1
These notes mention A19.2.
- O98.0 Tuberculosis complicating pregnancy, childbirth and the puerperium
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Tuberculosis, Miliary
an acute form of tuberculosis in which minute tubercles are formed in a number of organs of the body due to dissemination of the bacilli through the blood stream..
Patient EducationClinical
Tuberculosis
Tuberculosis (TB) is a bacterial disease that usually attacks the lungs. But it can also attack other parts of the body, including the kidneys, spine, and brain.
The full article covers:
- What is tuberculosis (TB)?
- What causes tuberculosis (TB)?
- Who is more likely to get infected with tuberculosis (TB) germs?
- Who is more likely to develop TB disease?
- What are the symptoms of tuberculosis (TB)?
- How is tuberculosis (TB) diagnosed?
- What is the treatment for tuberculosis (TB)?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert A19.2 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About A19.2Overview
What is the ICD-10 code for acute miliary tuberculosis, unspecified?
The ICD-10-CM code for acute miliary tuberculosis, unspecified is A19.2 (sometimes written as A192). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is A19.2 (Miliary tuberculosis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report acute miliary tuberculosis, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does A19.2 group to?
When acute miliary tuberculosis, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 974, 976, 975, 867, 869, 868, with relative weights from 0.6784 to 3.0488 depending on complications. Higher weights mean higher Medicare reimbursement.
Is A19.2 a CC or MCC?
CMS lists A19.2 as an MCC (major complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 19 closely related codes in its exclusion list.
Can A19.2 be reported with P37.0?
Not as a rule. The Excludes1 note at block A15-A19, which applies to A19.2, lists "congenital tuberculosis (P37.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
