A19 – Miliary tuberculosis

ICD-10-CM 2027 diagnosis code · Tuberculosis

Non-billable header

ICD-10-CM code A19

Code: A19 (claims format: A19)
Description: Miliary tuberculosis
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 1. Certain infectious and parasitic diseases (A00-B99)
Block: A15-A19 Tuberculosis

Billable codes under A19

A19 is a header code and cannot be used on claims. Choose the most specific code:

A19.0 – Acute miliary tuberculosis of a single specified siteBillable
A19.1 – Acute miliary tuberculosis of multiple sitesBillable
A19.2 – Acute miliary tuberculosis, unspecifiedBillable
A19.8 – Other miliary tuberculosisBillable
A19.9 – Miliary tuberculosis, unspecifiedBillable

Notes for A19

Includes:

disseminated tuberculosis
generalized tuberculosis
tuberculous polyserositis

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block A15-A19

Includes:

infections due to Mycobacterium tuberculosis and Mycobacterium bovis

Excludes1 (not coded here):

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)

Use additional code:

code, if applicable, for associated cachexia (E88.A)

Frequently asked questions

What is ICD-10 code A19?

A19 is the ICD-10-CM code for miliary tuberculosis, in the block A15-A19 (Tuberculosis).

Is A19 a billable code?

No. A19 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.