ICD-10 Code A19.2 – Acute Miliary Tuberculosis, Unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A19.2 – Acute miliary tuberculosis, unspecified
What it is
A19.2 identifies acute miliary tuberculosis when the specific organ or site is not stated. It refers to a disseminated form of tuberculosis with widespread infection, documented as acute and unspecified.
Clinical signs
Clinical features vary; refer to documentation. Standard references describe systemic illness such as fever, weight loss, cough, or multi-organ involvement, but the record must support acute miliary tuberculosis.
When to use this code
Use A19.2 when the provider documents acute miliary tuberculosis and does not specify a more exact site or manifestation. Code it from clear diagnostic wording in the record, not from suspicion alone. If the chart names another TB form, choose the documented diagnosis instead.
Do not use for
Do not use this code for latent TB, pulmonary TB without miliary spread, or unspecified tuberculosis without the acute miliary diagnosis. Check documentation if the record is incomplete or contradictory.
Coding tip
Query for the exact TB type and acuity when the note says only “tuberculosis” or “disseminated infection.”