2023 ICD-10-CM Diagnosis Code W88.1

Exposure to radioactive isotopes

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  • W88.1 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 W88.1 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of W88.1 - other international versions of ICD-10 W88.1 may differ.
ICD-10-CM Coding Rules
  • W88.1 describes the circumstance causing an injury, not the nature of the injury.
The following code(s) above W88.1 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 W88.1:
  • 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
  • W88
    ICD-10-CM Diagnosis Code W88

    Exposure to ionizing radiation

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • exposure to sunlight (X32)
    Exposure to ionizing radiation
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

External Cause Index entries containing back-references to W88.1:
  • Radiation (exposure to)
    • ionized, ionizing (particles, artificially accelerated)
      • radioisotopes W88.1
    • radioactive isotopes (any) W88.1
      • atomic power plant malfunction W88.1
    • atomic power plant W88.1 (malfunction)
    • gamma rays W88.1
    • radium NEC W88.1

ICD-10-CM Codes Adjacent To W88.1
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
W88.8XXD …… subsequent encounter
W88.8XXS …… sequela
W89 Exposure to man-made visible and ultraviolet light
W89.0 Exposure to welding light (arc)
W89.0XXA …… initial encounter

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