2023 ICD-10-CM Diagnosis Code W88

Exposure to ionizing radiation

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  • W88 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2023 edition of ICD-10-CM W88 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of W88 - other international versions of ICD-10 W88 may differ.
ICD-10-CM Coding Rules
  • W88 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 W88. 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 2021 2022 2023 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)
The following code(s) above W88 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 W88:
  • V00-Y99
    2023 ICD-10-CM Range V00-Y99

    External causes of morbidity

    • 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
    2023 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
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to W88:
  • Use Additional: D84.822
    , K62.7
    , L58
    ICD-10-CM Diagnosis Code D84.822

    Immunodeficiency due to external causes

      2021 - New Code 2022 2023 Billable/Specific Code
    Code Also
    • , if applicable, radiological procedure and radiotherapy (Y84.2)
    Use Additional
    • code for external cause such as:
    • exposure to ionizing radiation (W88)
    ICD-10-CM Diagnosis Code K62.7

    Radiation proctitis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Use Additional
    • code to identify the type of radiation (W88.-)
    • or radiation therapy (Y84.2)
    ICD-10-CM Diagnosis Code L58


      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Use Additional
    • code to identify the source of the radiation (W88, W90)
ICD-10-CM Codes Adjacent To W88
W86.0XXD …… subsequent encounter
W86.0XXS …… sequela
W86.1 Exposure to industrial wiring, appliances and electrical machinery
W86.1XXA …… initial encounter
W86.1XXD …… subsequent encounter
W86.1XXS …… sequela
W86.8 Exposure to other electric current
W86.8XXA …… initial encounter
W86.8XXD …… subsequent encounter
W86.8XXS …… sequela
W88 Exposure to ionizing radiation
W88.0 Exposure to X-rays
W88.0XXA …… initial encounter
W88.0XXD …… subsequent encounter
W88.0XXS …… sequela
W88.1 Exposure to radioactive isotopes
W88.1XXA …… initial encounter
W88.1XXD …… subsequent encounter
W88.1XXS …… sequela
W88.8 Exposure to other ionizing radiation
W88.8XXA …… initial encounter

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