Y99.1

Y99.1

Billable

Military activity

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

This code indicates that an injury or health condition occurred while the person was engaged in military activities or duties.

Coding Tips

•Use this code as a supplementary code to identify the external cause status, not as a primary diagnosis
•Pair with the specific injury or condition code that resulted from the military activity

Excludes 1 — Do NOT code together

activity of off duty military personnel (Y99.8)

Code Hierarchy

└Y99External cause status └Y99.1Military activity