W85-W99 — Exposure to electric current, radiation and extreme ambient air temperature and pressure
ICD-10-CM codes W85-W99 cover exposure to electric current, radiation and extreme ambient air temperature and pressure, within external causes of morbidity. The block holds 143 codes across 9 categories, of which 99 are billable and 44 are header codes that cannot be submitted on a claim. 143 of them (100%) require a 7th character.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
The 7th character in W85-W99
A code in this block is not complete without its 7th character, and a missing one is a rejected claim rather than a denied one: the clearinghouse never passes it on. 143 of the 143 codes here take one.
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Categories in W85-W99
- W85Exposure to electric transmission lines
- W86Exposure to other specified electric current
- W88Exposure to ionizing radiation
- W89Exposure to man-made visible and ultraviolet light
- W90Exposure to other nonionizing radiation
- W92Exposure to excessive heat of man-made origin
- W93Exposure to excessive cold of man-made origin
- W94Exposure to high and low air pressure and changes in air pressure
- W99Exposure to other man-made environmental factors