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X31

Exposure to excessive natural cold

• cold of man-made origin (W93.-)
• contact with or inhalation of dry ice (W93.-)
• contact with or inhalation of liquefied gas (W93.-)

• Excessive cold as the cause of chilblains NOS
• Excessive cold as the cause of immersion foot or hand
• Exposure to cold NOS
• Exposure to weather conditions

• The appropriate 7th character is to be added to code X31

• initial encounter
• subsequent encounter
• sequela