Exposure to other nonionizing radiation (W90)

• ICD-10 Index

  • External causes of morbidity and mortality (V01–Y98)

    • Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)

      • Exposure to other nonionizing radiation (W90)

        • W90 - Exposure to other nonionizing radiation NON-BILLABLE CODE
        • W90.0 - Exposure to radiofrequency NON-BILLABLE CODE
        • W90.0XXA - Exposure to radiofrequency, initial encounter BILLABLE CODE
        • W90.0XXD - Exposure to radiofrequency, subsequent encounter BILLABLE CODE
        • W90.0XXS - Exposure to radiofrequency, sequela BILLABLE CODE
        • W90.1 - Exposure to infrared radiation NON-BILLABLE CODE
        • W90.1XXA - Exposure to infrared radiation, initial encounter BILLABLE CODE
        • W90.1XXD - Exposure to infrared radiation, subsequent encounter BILLABLE CODE
        • W90.1XXS - Exposure to infrared radiation, sequela BILLABLE CODE
        • W90.2 - Exposure to laser radiation NON-BILLABLE CODE
        • W90.2XXA - Exposure to laser radiation, initial encounter BILLABLE CODE
        • W90.2XXD - Exposure to laser radiation, subsequent encounter BILLABLE CODE
        • W90.2XXS - Exposure to laser radiation, sequela BILLABLE CODE
        • W90.8 - Exposure to other nonionizing radiation NON-BILLABLE CODE
        • W90.8XXA - Exposure to other nonionizing radiation, initial encounter BILLABLE CODE
        • W90.8XXD - Exposure to other nonionizing radiation, subs encntr BILLABLE CODE
        • W90.8XXS - Exposure to other nonionizing radiation, sequela BILLABLE CODE

Instructional Notations

Type 2 Excludes Type 2 Excludes
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.

• exposure to sunlight X32

7th Character Note 7th Character Note
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.

• The appropriate 7th character is to be added to each code from category W90

7th Character 7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.

• A - initial encounter
• D - subsequent encounter
• S - sequela