W88.8
⚠ Non-billable
Exposure to other ionizing radiation
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
W88.8
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code W88.8?
ICD-10-CM code W88.8 represents Exposure to other ionizing radiation. It is a non-billable header code requiring a more specific subcategory in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is W88.8 billable?
No. W88.8 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is W88.8 in?
W88.8 belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the W88 category
W88
Exposure to ionizing radiation
Non-billable
W88.0
Exposure to X-rays
Non-billable
W88.1
Exposure to radioactive isotopes
Non-billable
W88.0XXA
Exposure to X-rays, initial encounter
Billable
W88.0XXD
Exposure to X-rays, subsequent encounter
Billable
W88.0XXS
Exposure to X-rays, sequela
Billable
W88.1XXA
Exposure to radioactive isotopes, initial encounter
Billable
W88.1XXD
Exposure to radioactive isotopes, subsequent encounter
Billable
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