W85-W99Not billable, use a more specific code below
Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)
chapter 20: External Causes of Morbidity
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Instructional notes
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers how to report external cause codes (V00-Y99) describing cause, intent, place, activity, and status. They are never principal or first-listed, and reporting is voluntary unless required.
- General External Cause Coding Guidelines (page 88)
- Place of Occurrence Guideline (page 89)
- Activity Code (page 89)
- Place of Occurrence, Activity, and Status Codes Used with other External Cause Code (page 89)
- If the Reporting Format Limits the Number of External Cause Codes (page 90)
- Multiple External Cause Coding Guidelines (page 90)
- Child and Adult Abuse Guideline (page 90)
- Unknown or Undetermined Intent Guideline (page 91)
All codes under W85-W99
W85-W99 can't be used on a claim. Pick a billable code below; grey headings group them.
- W85Exposure to electric transmission lines
- W85.XXXAExposure to electric transmission lines, initial encounter
- W85.XXXDExposure to electric transmission lines, subsequent encounter
- W85.XXXSExposure to electric transmission lines, sequela
- W86Exposure to other specified electric current
- W86.0Exposure to domestic wiring and appliances
- W86.0XXAExposure to domestic wiring and appliances, initial encounter
- W86.0XXDExposure to domestic wiring and appliances, subsequent encounter
- W86.0XXSExposure to domestic wiring and appliances, sequela
- W86.1Exposure to industrial wiring, appliances and electrical machinery
- W86.1XXAExposure to industrial wiring, appliances and electrical machinery, initial encounter
- W86.1XXDExposure to industrial wiring, appliances and electrical machinery, subsequent encounter
- W86.1XXSExposure to industrial wiring, appliances and electrical machinery, sequela
- W86.8Exposure to other electric current
- W86.8XXAExposure to other electric current, initial encounter
- W86.8XXDExposure to other electric current, subsequent encounter
- W86.8XXSExposure to other electric current, sequela
- W88Exposure to ionizing radiation
- W88.0Exposure to X-rays
- W88.0XXAExposure to X-rays, initial encounter
- W88.0XXDExposure to X-rays, subsequent encounter
- W88.0XXSExposure to X-rays, sequela
- W88.1Exposure to radioactive isotopes
- W88.1XXAExposure to radioactive isotopes, initial encounter
- W88.1XXDExposure to radioactive isotopes, subsequent encounter
- W88.1XXSExposure to radioactive isotopes, sequela
- W88.8Exposure to other ionizing radiation
- W88.8XXAExposure to other ionizing radiation, initial encounter
- W88.8XXDExposure to other ionizing radiation, subsequent encounter
- W88.8XXSExposure to other ionizing radiation, sequela
- W89Exposure to man-made visible and ultraviolet light
- W89.0Exposure to welding light (arc)
- W89.0XXAExposure to welding light (arc), initial encounter
- W89.0XXDExposure to welding light (arc), subsequent encounter
- W89.0XXSExposure to welding light (arc), sequela
- W89.1Exposure to tanning bed
- W89.1XXAExposure to tanning bed, initial encounter
- W89.1XXDExposure to tanning bed, subsequent encounter
- W89.1XXSExposure to tanning bed, sequela
- W89.8Exposure to other man-made visible and ultraviolet light
- W89.8XXAExposure to other man-made visible and ultraviolet light, initial encounter
- W89.8XXDExposure to other man-made visible and ultraviolet light, subsequent encounter
- W89.8XXSExposure to other man-made visible and ultraviolet light, sequela
- W89.9Exposure to unspecified man-made visible and ultraviolet light
- W89.9XXAExposure to unspecified man-made visible and ultraviolet light, initial encounter
- W89.9XXDExposure to unspecified man-made visible and ultraviolet light, subsequent encounter
- W89.9XXSExposure to unspecified man-made visible and ultraviolet light, sequela
- W90Exposure to other nonionizing radiation
- W90.0Exposure to radiofrequency
- W90.0XXAExposure to radiofrequency, initial encounter
- W90.0XXDExposure to radiofrequency, subsequent encounter
- W90.0XXSExposure to radiofrequency, sequela
- W90.1Exposure to infrared radiation
- W90.1XXAExposure to infrared radiation, initial encounter
- W90.1XXDExposure to infrared radiation, subsequent encounter
- W90.1XXSExposure to infrared radiation, sequela
- W90.2Exposure to laser radiation
- W90.2XXAExposure to laser radiation, initial encounter
- W90.2XXDExposure to laser radiation, subsequent encounter
- W90.2XXSExposure to laser radiation, sequela
- W90.8Exposure to other nonionizing radiation
- W90.8XXAExposure to other nonionizing radiation, initial encounter
- W90.8XXDExposure to other nonionizing radiation, subsequent encounter
- W90.8XXSExposure to other nonionizing radiation, sequela
- W92Exposure to excessive heat of man-made origin
- W92.XXXAExposure to excessive heat of man-made origin, initial encounter
- W92.XXXDExposure to excessive heat of man-made origin, subsequent encounter
- W92.XXXSExposure to excessive heat of man-made origin, sequela
- W93Exposure to excessive cold of man-made origin
- W93.0Contact with or inhalation of dry ice
- W93.01Contact with dry ice
- W93.01XAContact with dry ice, initial encounter
- W93.01XDContact with dry ice, subsequent encounter
- W93.01XSContact with dry ice, sequela
- W93.02Inhalation of dry ice
- W93.02XAInhalation of dry ice, initial encounter
- W93.02XDInhalation of dry ice, subsequent encounter
- W93.02XSInhalation of dry ice, sequela
- W93.1Contact with or inhalation of liquid air
- W93.11Contact with liquid air
- W93.11XAContact with liquid air, initial encounter
- W93.11XDContact with liquid air, subsequent encounter
- W93.11XSContact with liquid air, sequela
- W93.12Inhalation of liquid air
- W93.12XAInhalation of liquid air, initial encounter
- W93.12XDInhalation of liquid air, subsequent encounter
- W93.12XSInhalation of liquid air, sequela
- W93.2Prolonged exposure in deep freeze unit or refrigerator
- W93.2XXAProlonged exposure in deep freeze unit or refrigerator, initial encounter
- W93.2XXDProlonged exposure in deep freeze unit or refrigerator, subsequent encounter
- W93.2XXSProlonged exposure in deep freeze unit or refrigerator, sequela
- W93.8Exposure to other excessive cold of man-made origin
- W93.8XXAExposure to other excessive cold of man-made origin, initial encounter
- W93.8XXDExposure to other excessive cold of man-made origin, subsequent encounter
- W93.8XXSExposure to other excessive cold of man-made origin, sequela
- W94Exposure to high and low air pressure and changes in air pressure
- W94.0Exposure to prolonged high air pressure
- W94.0XXAExposure to prolonged high air pressure, initial encounter
- W94.0XXDExposure to prolonged high air pressure, subsequent encounter
- W94.0XXSExposure to prolonged high air pressure, sequela
- W94.1Exposure to prolonged low air pressure
- W94.11Exposure to residence or prolonged visit at high altitude
- W94.11XAExposure to residence or prolonged visit at high altitude, initial encounter
- W94.11XDExposure to residence or prolonged visit at high altitude, subsequent encounter
- W94.11XSExposure to residence or prolonged visit at high altitude, sequela
- W94.12Exposure to other prolonged low air pressure
- W94.12XAExposure to other prolonged low air pressure, initial encounter
- W94.12XDExposure to other prolonged low air pressure, subsequent encounter
- W94.12XSExposure to other prolonged low air pressure, sequela
- W94.2Exposure to rapid changes in air pressure during ascent
- W94.21Exposure to reduction in atmospheric pressure while surfacing from deep-water diving
- W94.21XAExposure to reduction in atmospheric pressure while surfacing from deep-water diving, initial encounter
- W94.21XDExposure to reduction in atmospheric pressure while surfacing from deep-water diving, subsequent encounter
- W94.21XSExposure to reduction in atmospheric pressure while surfacing from deep-water diving, sequela
- W94.22Exposure to reduction in atmospheric pressure while surfacing from underground
- W94.22XAExposure to reduction in atmospheric pressure while surfacing from underground, initial encounter
- W94.22XDExposure to reduction in atmospheric pressure while surfacing from underground, subsequent encounter
- W94.22XSExposure to reduction in atmospheric pressure while surfacing from underground, sequela
- W94.23Exposure to sudden change in air pressure in aircraft during ascent
- W94.23XAExposure to sudden change in air pressure in aircraft during ascent, initial encounter
- W94.23XDExposure to sudden change in air pressure in aircraft during ascent, subsequent encounter
- W94.23XSExposure to sudden change in air pressure in aircraft during ascent, sequela
- W94.29Exposure to other rapid changes in air pressure during ascent
- W94.29XAExposure to other rapid changes in air pressure during ascent, initial encounter
- W94.29XDExposure to other rapid changes in air pressure during ascent, subsequent encounter
- W94.29XSExposure to other rapid changes in air pressure during ascent, sequela
- W94.3Exposure to rapid changes in air pressure during descent
- W94.31Exposure to sudden change in air pressure in aircraft during descent
- W94.31XAExposure to sudden change in air pressure in aircraft during descent, initial encounter
- W94.31XDExposure to sudden change in air pressure in aircraft during descent, subsequent encounter
- W94.31XSExposure to sudden change in air pressure in aircraft during descent, sequela
- W94.32Exposure to high air pressure from rapid descent in water
- W94.32XAExposure to high air pressure from rapid descent in water, initial encounter
- W94.32XDExposure to high air pressure from rapid descent in water, subsequent encounter
- W94.32XSExposure to high air pressure from rapid descent in water, sequela
- W94.39Exposure to other rapid changes in air pressure during descent
- W94.39XAExposure to other rapid changes in air pressure during descent, initial encounter
- W94.39XDExposure to other rapid changes in air pressure during descent, subsequent encounter
- W94.39XSExposure to other rapid changes in air pressure during descent, sequela
- W99Exposure to other man-made environmental factors
- W99.XXXAExposure to other man-made environmental factors, initial encounter
- W99.XXXDExposure to other man-made environmental factors, subsequent encounter
- W99.XXXSExposure to other man-made environmental factors, sequela
W85-W99 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Electrical Injuries
When you come in direct contact with electricity, it can pass through your body and cause injuries. These electrical injuries can be external or internal. You may have one or both types. External injuries are skin burns. Internal injuries include damage to your organs, bones, muscles, and nerves. You could also have abnormal heart rhythms and sudden cardiac arrest (SCA).
Read more about electrical injuries on MedlinePlusWounds and Injuries
An injury is damage to your body. It is a general term that refers to harm caused by accidents, falls, hits, weapons, and more. In the U.S., millions of people injure themselves every year. These injuries range from minor to life-threatening. Injuries can happen at work or play, indoors or outdoors, driving a car, or walking across the street.
Read more about wounds and injuries on MedlinePlus