W85-W99
Exposure to electric current, radiation and extreme ambient air temperature and pressure
Block coding notes
Excludes 1 never together · Excludes 2 may co-exist
Codes in this block
143 codes
Billableusable codeNon-billableheader / grouping codeRisk-adjusting
- W85Exposure to electric transmission linesNon-billable
- W85XXXAExposure to electric transmission lines, initial encounterBillable
- W85XXXDExposure to electric transmission lines, subsequent encounterBillable
- W85XXXSExposure to electric transmission lines, sequelaBillable
- W86Exposure to other specified electric currentNon-billable
- W86.0Exposure to domestic wiring and appliancesNon-billable
- W86.0XXAExposure to domestic wiring and appliances, initial encounterBillable
- W86.0XXDExposure to domestic wiring and appliances, subsequent encounterBillable
- W86.0XXSExposure to domestic wiring and appliances, sequelaBillable
- W86.1Exposure to industrial wiring, appliances and electrical machineryNon-billable
- W86.1XXAExposure to industrial wiring, appliances and electrical machinery, initial encounterBillable
- W86.1XXDExposure to industrial wiring, appliances and electrical machinery, subsequent encounterBillable
- W86.1XXSExposure to industrial wiring, appliances and electrical machinery, sequelaBillable
- W86.8Exposure to other electric currentNon-billable
- W86.8XXAExposure to other electric current, initial encounterBillable
- W86.8XXDExposure to other electric current, subsequent encounterBillable
- W86.8XXSExposure to other electric current, sequelaBillable
- W88Exposure to ionizing radiationNon-billable
- W88.0Exposure to X-raysNon-billable
- W88.0XXAExposure to X-rays, initial encounterBillable
- W88.0XXDExposure to X-rays, subsequent encounterBillable
- W88.0XXSExposure to X-rays, sequelaBillable
- W88.1Exposure to radioactive isotopesNon-billable
- W88.1XXAExposure to radioactive isotopes, initial encounterBillable
- W88.1XXDExposure to radioactive isotopes, subsequent encounterBillable
- W88.1XXSExposure to radioactive isotopes, sequelaBillable
- W88.8Exposure to other ionizing radiationNon-billable
- W88.8XXAExposure to other ionizing radiation, initial encounterBillable
- W88.8XXDExposure to other ionizing radiation, subsequent encounterBillable
- W88.8XXSExposure to other ionizing radiation, sequelaBillable
- W89Exposure to man-made visible and ultraviolet lightNon-billable
- W89.0Exposure to welding light (arc)Non-billable
- W89.0XXAExposure to welding light (arc), initial encounterBillable
- W89.0XXDExposure to welding light (arc), subsequent encounterBillable
- W89.0XXSExposure to welding light (arc), sequelaBillable
- W89.1Exposure to tanning bedNon-billable
- W89.1XXAExposure to tanning bed, initial encounterBillable
- W89.1XXDExposure to tanning bed, subsequent encounterBillable
- W89.1XXSExposure to tanning bed, sequelaBillable
- W89.8Exposure to other man-made visible and ultraviolet lightNon-billable
- W89.8XXAExposure to other man-made visible and ultraviolet light, initial encounterBillable
- W89.8XXDExposure to other man-made visible and ultraviolet light, subsequent encounterBillable
- W89.8XXSExposure to other man-made visible and ultraviolet light, sequelaBillable
- W89.9Exposure to unspecified man-made visible and ultraviolet lightNon-billable
- W89.9XXAExposure to unspecified man-made visible and ultraviolet light, initial encounterBillable
- W89.9XXDExposure to unspecified man-made visible and ultraviolet light, subsequent encounterBillable
- W89.9XXSExposure to unspecified man-made visible and ultraviolet light, sequelaBillable
- W90Exposure to other nonionizing radiationNon-billable
- W90.0Exposure to radiofrequencyNon-billable
- W90.0XXAExposure to radiofrequency, initial encounterBillable
- W90.0XXDExposure to radiofrequency, subsequent encounterBillable
- W90.0XXSExposure to radiofrequency, sequelaBillable
- W90.1Exposure to infrared radiationNon-billable
- W90.1XXAExposure to infrared radiation, initial encounterBillable
- W90.1XXDExposure to infrared radiation, subsequent encounterBillable
- W90.1XXSExposure to infrared radiation, sequelaBillable
- W90.2Exposure to laser radiationNon-billable
- W90.2XXAExposure to laser radiation, initial encounterBillable
- W90.2XXDExposure to laser radiation, subsequent encounterBillable
- W90.2XXSExposure to laser radiation, sequelaBillable
- W90.8Exposure to other nonionizing radiationNon-billable
- W90.8XXAExposure to other nonionizing radiation, initial encounterBillable
- W90.8XXDExposure to other nonionizing radiation, subsequent encounterBillable
- W90.8XXSExposure to other nonionizing radiation, sequelaBillable
- W92Exposure to excessive heat of man-made originNon-billable
- W92XXXAExposure to excessive heat of man-made origin, initial encounterBillable
- W92XXXDExposure to excessive heat of man-made origin, subsequent encounterBillable
- W92XXXSExposure to excessive heat of man-made origin, sequelaBillable
- W93Exposure to excessive cold of man-made originNon-billable
- W93.0Contact with or inhalation of dry iceNon-billable
- W93.01Contact with dry iceNon-billable
- W93.01XAContact with dry ice, initial encounterBillable
- W93.01XDContact with dry ice, subsequent encounterBillable
- W93.01XSContact with dry ice, sequelaBillable
- W93.02Inhalation of dry iceNon-billable
- W93.02XAInhalation of dry ice, initial encounterBillable
- W93.02XDInhalation of dry ice, subsequent encounterBillable
- W93.02XSInhalation of dry ice, sequelaBillable
- W93.1Contact with or inhalation of liquid airNon-billable
- W93.11Contact with liquid airNon-billable
- W93.11XAContact with liquid air, initial encounterBillable
- W93.11XDContact with liquid air, subsequent encounterBillable
- W93.11XSContact with liquid air, sequelaBillable
- W93.12Inhalation of liquid airNon-billable
- W93.12XAInhalation of liquid air, initial encounterBillable
- W93.12XDInhalation of liquid air, subsequent encounterBillable
- W93.12XSInhalation of liquid air, sequelaBillable
- W93.2Prolonged exposure in deep freeze unit or refrigeratorNon-billable
- W93.2XXAProlonged exposure in deep freeze unit or refrigerator, initial encounterBillable
- W93.2XXDProlonged exposure in deep freeze unit or refrigerator, subsequent encounterBillable
- W93.2XXSProlonged exposure in deep freeze unit or refrigerator, sequelaBillable
- W93.8Exposure to other excessive cold of man-made originNon-billable
- W93.8XXAExposure to other excessive cold of man-made origin, initial encounterBillable
- W93.8XXDExposure to other excessive cold of man-made origin, subsequent encounterBillable
- W93.8XXSExposure to other excessive cold of man-made origin, sequelaBillable
- W94Exposure to high and low air pressure and changes in air pressureNon-billable
- W94.0Exposure to prolonged high air pressureNon-billable
- W94.0XXAExposure to prolonged high air pressure, initial encounterBillable
- W94.0XXDExposure to prolonged high air pressure, subsequent encounterBillable
- W94.0XXSExposure to prolonged high air pressure, sequelaBillable
- W94.1Exposure to prolonged low air pressureNon-billable
- W94.11Exposure to residence or prolonged visit at high altitudeNon-billable
- W94.11XAExposure to residence or prolonged visit at high altitude, initial encounterBillable
- W94.11XDExposure to residence or prolonged visit at high altitude, subsequent encounterBillable
- W94.11XSExposure to residence or prolonged visit at high altitude, sequelaBillable
- W94.12Exposure to other prolonged low air pressureNon-billable
- W94.12XAExposure to other prolonged low air pressure, initial encounterBillable
- W94.12XDExposure to other prolonged low air pressure, subsequent encounterBillable
- W94.12XSExposure to other prolonged low air pressure, sequelaBillable
- W94.2Exposure to rapid changes in air pressure during ascentNon-billable
- W94.21Exposure to reduction in atmospheric pressure while surfacing from deep-water divingNon-billable
- W94.21XAExposure to reduction in atmospheric pressure while surfacing from deep-water diving, initial encounterBillable
- W94.21XDExposure to reduction in atmospheric pressure while surfacing from deep-water diving, subsequent encounterBillable
- W94.21XSExposure to reduction in atmospheric pressure while surfacing from deep-water diving, sequelaBillable
- W94.22Exposure to reduction in atmospheric pressure while surfacing from undergroundNon-billable
- W94.22XAExposure to reduction in atmospheric pressure while surfacing from underground, initial encounterBillable
- W94.22XDExposure to reduction in atmospheric pressure while surfacing from underground, subsequent encounterBillable
- W94.22XSExposure to reduction in atmospheric pressure while surfacing from underground, sequelaBillable
- W94.23Exposure to sudden change in air pressure in aircraft during ascentNon-billable
- W94.23XAExposure to sudden change in air pressure in aircraft during ascent, initial encounterBillable
- W94.23XDExposure to sudden change in air pressure in aircraft during ascent, subsequent encounterBillable
- W94.23XSExposure to sudden change in air pressure in aircraft during ascent, sequelaBillable
- W94.29Exposure to other rapid changes in air pressure during ascentNon-billable
- W94.29XAExposure to other rapid changes in air pressure during ascent, initial encounterBillable
- W94.29XDExposure to other rapid changes in air pressure during ascent, subsequent encounterBillable
- W94.29XSExposure to other rapid changes in air pressure during ascent, sequelaBillable
- W94.3Exposure to rapid changes in air pressure during descentNon-billable
- W94.31Exposure to sudden change in air pressure in aircraft during descentNon-billable
- W94.31XAExposure to sudden change in air pressure in aircraft during descent, initial encounterBillable
- W94.31XDExposure to sudden change in air pressure in aircraft during descent, subsequent encounterBillable
- W94.31XSExposure to sudden change in air pressure in aircraft during descent, sequelaBillable
- W94.32Exposure to high air pressure from rapid descent in waterNon-billable
- W94.32XAExposure to high air pressure from rapid descent in water, initial encounterBillable
- W94.32XDExposure to high air pressure from rapid descent in water, subsequent encounterBillable
- W94.32XSExposure to high air pressure from rapid descent in water, sequelaBillable
- W94.39Exposure to other rapid changes in air pressure during descentNon-billable
- W94.39XAExposure to other rapid changes in air pressure during descent, initial encounterBillable
- W94.39XDExposure to other rapid changes in air pressure during descent, subsequent encounterBillable
- W94.39XSExposure to other rapid changes in air pressure during descent, sequelaBillable
- W99Exposure to other man-made environmental factorsNon-billable
- W99XXXAExposure to other man-made environmental factors, initial encounterBillable
- W99XXXDExposure to other man-made environmental factors, subsequent encounterBillable
- W99XXXSExposure to other man-made environmental factors, sequelaBillable
Official Guidelines for W85-W99
FY 2026 ›I.C.20Chapter-specific guidanceChapter 20: External Causes of Morbidity (V00-Y99)
Subsections
- I.C.20.aGeneral External Cause Coding Guidelines
- I.C.20.bPlace of Occurrence Guideline
- I.C.20.cActivity Code
- I.C.20.dPlace of Occurrence, Activity, and Status Codes Used with other
- I.C.20.eIf the Reporting Format Limits the Number of External Cause Codes
- I.C.20.fMultiple External Cause Coding Guidelines
- I.C.20.gChild and Adult Abuse Guideline
- I.C.20.hUnknown or Undetermined Intent Guideline
- I.C.20.iSequelae (Late Effects) of External Cause Guidelines
- I.C.20.jTerrorism Guidelines
- I.C.20.kExternal Cause Status