A19.1

What This Code Means

This is a severe form of tuberculosis where the infection spreads rapidly throughout the body, affecting multiple organs and sites simultaneously. The condition is called 'miliary' because the tiny lesions resemble millet seeds when viewed under a microscope.

Coding Tips

• •This code indicates acute onset miliary TB affecting multiple body sites; ensure documentation specifies the acute presentation and confirms involvement of at least two different organ systems
• •Do not use this code for miliary TB limited to a single site or for chronic miliary TB; verify the timeframe and extent of disease in the medical record before code assignment