A19.8 ICD-10-CM Code: Other miliary tuberculosis
HCC Buddy Code Card
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FY 2026 Apr update / Certain infectious and parasitic diseases (A00-B99) / Tuberculosis (A15-A19)
A19.8
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceOther miliary tuberculosis
This code describes a severe form of tuberculosis where the infection has spread throughout the body, affecting multiple organs and appearing as tiny millet-seed-like lesions (miliary pattern). It represents a disseminated tuberculosis infection that is not specified as acute or chronic.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for A19.8 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for A19.8 in this effective period.
Related Child Codes
Includes
Official- disseminated tuberculosis
- generalized tuberculosis
- tuberculous polyserositis
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for A19.8 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for A19.8 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for A19.8 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for A19.8 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is A19.8 an HCC code?
No. A19.8 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- A19.8
- Description
- Other miliary tuberculosis
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A19.8 is the ICD-10-CM diagnosis code for other miliary tuberculosis. This code describes a severe form of tuberculosis where the infection has spread throughout the body, affecting multiple organs and appearing as tiny millet-seed-like lesions (miliary pattern). It represents a disseminated tuberculosis infection that is not specified as acute or chronic. A19.8 sits in the ICD-10-CM chapter for certain infectious and parasitic diseases (a00-b99), within the section covering tuberculosis (a15-a19).
A19.8 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Verify the documentation specifies miliary tuberculosis and confirm it is not acute miliary TB (A19.0) or chronic miliary TB (A19.1) before assigning this 'other' code.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for A19.8 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify the documentation specifies miliary tuberculosis and confirm it is not acute miliary TB (A19.0) or chronic miliary TB (A19.1) before assigning this 'other' code
- •This code requires a secondary code to identify the site of tuberculosis infection (such as TB of lungs, meninges, or other organs) when documented