Question 1

Is W90 a billable ICD-10 code?

Accepted Answer

No, W90 is not a billable code. It is a category code that requires additional specificity. You must select a more specific code from the subcategories for billing purposes.

Question 2

What does ICD-10 code W90 mean?

Accepted Answer

ICD-10-CM code W90 represents Exposure to other nonionizing radiation. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

What is the parent category for ICD-10 code W90?

Accepted Answer

The parent category for W90 is section:W85-W99 (Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 4

What conditions should be coded separately from W90?

Accepted Answer

Code W90 has Type 2 Excludes including: exposure to sunlight (X32). These conditions are not included in W90 but can be coded together if the patient has both conditions.

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