W90 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Exposure to other nonionizing radiation.
Type 2 excludes
Exposure to sunlight (X32)
Seventh character note
The appropriate 7th character is to be added to each code from category W90
Seventh character extensions
A: initial encounter
D: subsequent encounter
S: sequela
Codes
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
Code changed
Type 1 excludes
exposure to sunlight (X32)
Type 2 excludes
- exposure to sunlight (X32)
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code