ICD-10-CM 2027 diagnosis code
W89.8Exposure to other man-made visible and ultraviolet light
W89.8 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About W89.8
W89.8 is the ICD-10-CM diagnosis code for exposure to other man-made visible and ultraviolet light. It belongs to category W89 (exposure to man-made visible and ultraviolet light), block W85-W99 (exposure to electric current, radiation and extreme ambient air temperature and pressure) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within W89, choose W89.8 (other man-made visible and ultraviolet light) only when documentation doesn't support a more specific option: welding light (arc) (W89.0), tanning bed (W89.1) and unspecified man-made visible and ultraviolet light (W89.9).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category W89
Notes that apply from higher levels
Instructions written at a parent level also apply to W89.8.
› From W89 Exposure to man-made visible and ultraviolet light
- exposure to welding light (arc)
- exposure to sunlight (X32)
Broader instructions also apply from W85-W99 Exposure to electric current, radiation and extreme ambient air temperature and pressure and Chapter 20: External causes of morbidity.
Alphabetic index entries
4 entriesTerms in the official ICD-10-CM index that lead to W89.8.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about W89.8
Is W89.8 billable?
- No. W89.8 is a header code. Report one of its more specific subcodes instead.