X31: Exposure to excessive natural cold inclusionTerm 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 excludes1 cold of man-made origin (W93.-) contact with or inhalation of dry ice (W93.-) contact with or inhalation of liquefied gas (W93.-) sevenChrNote The appropriate 7th character is to be added to code X31 sevenChrDef A: initial encounter D: subsequent encounter S: sequela |