ICD-10-CM · Chapter 20 · V00-Y99

X30 Exposure to excessive natural heat

Category / Non-billable header

Block: Accidents (V00-X58)

Includes

Exposure to excessive heat as the cause of sunstroke
Exposure to heat NOS

Excludes 1 (cannot be coded together)

excessive heat of man-made origin (W92)
exposure to man-made radiation (W89)
exposure to sunlight (X32)
exposure to tanning bed (W89)

Last reviewed: September 2026