2020 ICD-10-CM Diagnosis Code W90

Exposure to other nonionizing radiation

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • W90 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM W90 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of W90 - other international versions of ICD-10 W90 may differ.
ICD-10-CM Coding Rules
  • W90 describes the circumstance causing an injury, not the nature of the injury.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as W90. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • exposure to sunlight (
    ICD-10-CM Diagnosis Code X32

    Exposure to sunlight

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • man-made radiation (tanning bed) (W89)
    Type 2 Excludes
    • radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
    X32
    )
The following code(s) above W90 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to W90:
  • V00-Y99
    2020 ICD-10-CM Range V00-Y99

    External causes of morbidity

    Note
    • This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.
    External causes of morbidity
  • W85-W99
    2020 ICD-10-CM Range W85-W99

    Exposure to electric current, radiation and extreme ambient air temperature and pressure

    Type 1 Excludes
    • exposure to:
    • failure in dosage of radiation or temperature during surgical and medical care (Y63.2-Y63.5)
    • lightning (T75.0-)
    • natural cold (X31)
    • natural heat (X30)
    • natural radiation NOS (X39)
    • radiological procedure and radiotherapy (Y84.2)
    • sunlight (X32)
    Exposure to electric current, radiation and extreme ambient air temperature and pressure
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to W90:
  • Use Additional: K62.7
    , L58
    ICD-10-CM Diagnosis Code K62.7

    Radiation proctitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Use Additional
    • code to identify the type of radiation (W90.-)
    ICD-10-CM Diagnosis Code L58

    Radiodermatitis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Use Additional
    • code to identify the source of the radiation (W88, W90)
ICD-10-CM Codes Adjacent To W90
W89.1XXD …… subsequent encounter
W89.1XXS …… sequela
W89.8 Exposure to other man-made visible and ultraviolet light
W89.8XXA …… initial encounter
W89.8XXD …… subsequent encounter
W89.8XXS …… sequela
W89.9 Exposure to unspecified man-made visible and ultraviolet light
W89.9XXA …… initial encounter
W89.9XXD …… subsequent encounter
W89.9XXS …… sequela
W90 Exposure to other nonionizing radiation
W90.0 Exposure to radiofrequency
W90.0XXA …… initial encounter
W90.0XXD …… subsequent encounter
W90.0XXS …… sequela
W90.1 Exposure to infrared radiation
W90.1XXA …… initial encounter
W90.1XXD …… subsequent encounter
W90.1XXS …… sequela
W90.2 Exposure to laser radiation
W90.2XXA …… initial encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.