ICD-10-CM > V00-Y99 > W85-W99 > W88 W88 Exposure to ionizing radiation Non-Billable/Non-Specific Type 1 Excludes exposure to sunlight (X32) Codes W88.0Exposure to X-raysW88.0XXA..., initial encounterW88.0XXD..., subsequent encounterW88.0XXS..., sequelaW88.1Exposure to radioactive isotopesW88.1XXA..., initial encounterW88.1XXD..., subsequent encounterW88.1XXS..., sequelaW88.8Exposure to other ionizing radiationW88.8XXA..., initial encounterW88.8XXD..., subsequent encounterW88.8XXS..., sequela