2026 ICD-10-CM Diagnosis Code W89Exposure to man-made visible and ultraviolet light
W89 is a non-billable ICD-10-CM category code for exposure to man-made visible and ultraviolet light, so it cannot be submitted on claims. Use a more specific code from this category instead, such as W89.0XXA, W89.0XXD, W89.0XXS, and W89.1XXA.
Code Identity
Code Classification
Specific Coding for Exposure to man-made visible and ultraviolet lightOverview
Non-specific codes like W89 require more characters. Use one of these billable codes instead:
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Includes
- exposure to welding light (arc)
Type 2 Excludes
- exposure to sunlight X32
7th Character Note
- The appropriate 7th character is to be added to each code from category W89
7th Character
- A - initial encounter
- D - subsequent encounter
- S - sequela
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
Indicates that a seventh character is to be assigned to codes in a subcategory.
Code HistoryHistory
Questions About W89Overview
Is W89 (Exposure to man-made visible and ultraviolet light) a billable code?
No. This is a category header that groups the codes for exposure to man-made visible and ultraviolet light, and headers cannot be submitted on claims. Claims for exposure to man-made visible and ultraviolet light need a more specific code from this category, such as W89.0XXA, W89.0XXD, and W89.0XXS.
