W90: Exposure to other nonionizing radiation

Codes under W90 (Exposure to other nonionizing radiation). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
W90.0	Exposure to radiofrequency	—
W90.0XXA	Exposure to radiofrequency, initial encounter	✓
W90.0XXD	Exposure to radiofrequency, subsequent encounter	✓
W90.0XXS	Exposure to radiofrequency, sequela	✓
W90.1	Exposure to infrared radiation	—
W90.1XXA	Exposure to infrared radiation, initial encounter	✓
W90.1XXD	Exposure to infrared radiation, subsequent encounter	✓
W90.1XXS	Exposure to infrared radiation, sequela	✓
W90.2	Exposure to laser radiation	—
W90.2XXA	Exposure to laser radiation, initial encounter	✓
W90.2XXD	Exposure to laser radiation, subsequent encounter	✓
W90.2XXS	Exposure to laser radiation, sequela	✓
W90.8	Exposure to other nonionizing radiation	—
W90.8XXA	Exposure to other nonionizing radiation, initial encounter	✓
W90.8XXD	Exposure to other nonionizing radiation, subsequent encounter	✓
W90.8XXS	Exposure to other nonionizing radiation, sequela	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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