W88.1
⚠ Non-billable (Header)Exposure to radioactive isotopes
External causes of morbidity (V00-Y99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • exposure to sunlight (X32)
Child Codes (3)
Clinical Description
ICD-10-CM code W88.1 represents exposure to radioactive isotopes. This code falls under the External causes of morbidity (V00-Y99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 5-character code at the 4th level of specificity. There are 3 more specific child codes under W88.1. Coders should note that W88.1 has 1 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code W88.1?
ICD-10-CM code W88.1 is "Exposure to radioactive isotopes". It belongs to the category: External causes of morbidity (V00-Y99).
Is W88.1 a billable ICD-10 code?
No, W88.1 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with W88.1?
W88.1 has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in W88
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)