ICD-10-CM · FY 2026 POA Exempt
POA Exempt: Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99) ICD-10-CM
The 88 ICD-10-CM codes in this range are exempt from Present on Admission reporting for fiscal year 2026. Hospitals assign no POA indicator for them on inpatient claims: the codes describe circumstances, such as pre-existing conditions or the cause of an injury, where asking whether the condition was present at admission adds no information.
✓ Built from the official CMS FY 2026 POA exempt fileEffective Oct 1, 2025 – Sep 30, 2026
88
Exempt Codes
1
POA Indicator When Reported
ICD-10-CM
Exempt Codes in This Range 88 codes · 9 categories
88 of 88 shown
W85 Exposure to electric transmission lines2 codes
W86 Exposure to other specified electric current6 codes
- W86.0XXD Exposure to domestic wiring and appliances, subsequent encounter
- W86.0XXS Exposure to domestic wiring and appliances, sequela
- W86.1XXD Exposure to industrial wiring, appliances and electrical machinery, subsequent encounter
- W86.1XXS Exposure to industrial wiring, appliances and electrical machinery, sequela
- W86.8XXD Exposure to other electric current, subsequent encounter
- W86.8XXS Exposure to other electric current, sequela
W88 Exposure to ionizing radiation6 codes
- W88.0XXD Exposure to X-rays, subsequent encounter
- W88.0XXS Exposure to X-rays, sequela
- W88.1XXD Exposure to radioactive isotopes, subsequent encounter
- W88.1XXS Exposure to radioactive isotopes, sequela
- W88.8XXD Exposure to other ionizing radiation, subsequent encounter
- W88.8XXS Exposure to other ionizing radiation, sequela
W89 Exposure to man-made visible and ultraviolet light12 codes
- W89.0XXA Exposure to welding light (arc), initial encounter
- W89.0XXD Exposure to welding light (arc), subsequent encounter
- W89.0XXS Exposure to welding light (arc), sequela
- W89.1XXA Exposure to tanning bed, initial encounter
- W89.1XXD Exposure to tanning bed, subsequent encounter
- W89.1XXS Exposure to tanning bed, sequela
- W89.8XXA Exposure to other man-made visible and ultraviolet light, initial encounter
- W89.8XXD Exposure to other man-made visible and ultraviolet light, subsequent encounter
- W89.8XXS Exposure to other man-made visible and ultraviolet light, sequela
- W89.9XXA Exposure to unspecified man-made visible and ultraviolet light, initial encounter
- W89.9XXD Exposure to unspecified man-made visible and ultraviolet light, subsequent encounter
- W89.9XXS Exposure to unspecified man-made visible and ultraviolet light, sequela
W90 Exposure to other nonionizing radiation8 codes
- W90.0XXD Exposure to radiofrequency, subsequent encounter
- W90.0XXS Exposure to radiofrequency, sequela
- W90.1XXD Exposure to infrared radiation, subsequent encounter
- W90.1XXS Exposure to infrared radiation, sequela
- W90.2XXD Exposure to laser radiation, subsequent encounter
- W90.2XXS Exposure to laser radiation, sequela
- W90.8XXD Exposure to other nonionizing radiation, subsequent encounter
- W90.8XXS Exposure to other nonionizing radiation, sequela
W92 Exposure to excessive heat of man-made origin3 codes
W93 Exposure to excessive cold of man-made origin18 codes
- W93.01XA Contact with dry ice, initial encounter
- W93.01XD Contact with dry ice, subsequent encounter
- W93.01XS Contact with dry ice, sequela
- W93.02XA Inhalation of dry ice, initial encounter
- W93.02XD Inhalation of dry ice, subsequent encounter
- W93.02XS Inhalation of dry ice, sequela
- W93.11XA Contact with liquid air, initial encounter
- W93.11XD Contact with liquid air, subsequent encounter
- W93.11XS Contact with liquid air, sequela
- W93.12XA Inhalation of liquid air, initial encounter
- W93.12XD Inhalation of liquid air, subsequent encounter
- W93.12XS Inhalation of liquid air, sequela
- W93.2XXA Prolonged exposure in deep freeze unit or refrigerator, initial encounter
- W93.2XXD Prolonged exposure in deep freeze unit or refrigerator, subsequent encounter
- W93.2XXS Prolonged exposure in deep freeze unit or refrigerator, sequela
- W93.8XXA Exposure to other excessive cold of man-made origin, initial encounter
- W93.8XXD Exposure to other excessive cold of man-made origin, subsequent encounter
- W93.8XXS Exposure to other excessive cold of man-made origin, sequela
W94 Exposure to high and low air pressure and changes in air pressure30 codes
- W94.0XXA Exposure to prolonged high air pressure, initial encounter
- W94.0XXD Exposure to prolonged high air pressure, subsequent encounter
- W94.0XXS Exposure to prolonged high air pressure, sequela
- W94.11XA Exposure to residence or prolonged visit at high altitude, initial encounter
- W94.11XD Exposure to residence or prolonged visit at high altitude, subsequent encounter
- W94.11XS Exposure to residence or prolonged visit at high altitude, sequela
- W94.12XA Exposure to other prolonged low air pressure, initial encounter
- W94.12XD Exposure to other prolonged low air pressure, subsequent encounter
- W94.12XS Exposure to other prolonged low air pressure, sequela
- W94.21XA Exposure to reduction in atmospheric pressure while surfacing from deep-water diving, initial encounter
- W94.21XD Exposure to reduction in atmospheric pressure while surfacing from deep-water diving, subsequent encounter
- W94.21XS Exposure to reduction in atmospheric pressure while surfacing from deep-water diving, sequela
- W94.22XA Exposure to reduction in atmospheric pressure while surfacing from underground, initial encounter
- W94.22XD Exposure to reduction in atmospheric pressure while surfacing from underground, subsequent encounter
- W94.22XS Exposure to reduction in atmospheric pressure while surfacing from underground, sequela
- W94.23XA Exposure to sudden change in air pressure in aircraft during ascent, initial encounter
- W94.23XD Exposure to sudden change in air pressure in aircraft during ascent, subsequent encounter
- W94.23XS Exposure to sudden change in air pressure in aircraft during ascent, sequela
- W94.29XA Exposure to other rapid changes in air pressure during ascent, initial encounter
- W94.29XD Exposure to other rapid changes in air pressure during ascent, subsequent encounter
- W94.29XS Exposure to other rapid changes in air pressure during ascent, sequela
- W94.31XA Exposure to sudden change in air pressure in aircraft during descent, initial encounter
- W94.31XD Exposure to sudden change in air pressure in aircraft during descent, subsequent encounter
- W94.31XS Exposure to sudden change in air pressure in aircraft during descent, sequela
- W94.32XA Exposure to high air pressure from rapid descent in water, initial encounter
- W94.32XD Exposure to high air pressure from rapid descent in water, subsequent encounter
- W94.32XS Exposure to high air pressure from rapid descent in water, sequela
- W94.39XA Exposure to other rapid changes in air pressure during descent, initial encounter
- W94.39XD Exposure to other rapid changes in air pressure during descent, subsequent encounter
- W94.39XS Exposure to other rapid changes in air pressure during descent, sequela
Questions About This Category
Why are these codes POA exempt?
The codes for exposure to electric current, radiation and extreme ambient air temperature and pressure describe circumstances where the Present on Admission question has no meaning, so CMS exempts them from the indicator. The exemption is published in the official FY 2026 CMS exempt file.
How many codes in this range are exempt?
The FY 2026 exempt list contains 88 codes in this range, effective October 1, 2025 through September 30, 2026.
Are these codes billable?
The exemption only removes the POA indicator requirement, it does not change how a code is used on claims. Billable status is shown per code: blue codes are billable, and any codes shown in the amber tone are category headers that need more characters.
More POA Exempt Categories
Exposure to electric transmission linesExposure to other specified electric currentExposure to ionizing radiationExposure to man-made visible and ultraviolet lightExposure to other nonionizing radiationExposure to excessive heat of man-made originExposure to excessive cold of man-made originExposure to high and low air pressure and changes in air pressure All POA exempt categories →
Source: CMS FY 2026 ICD-10-CM POA exempt file, effective October 1, 2025 through September 30, 2026. See also the Medicare Code Edits and the MS-DRG list.
