External causes of morbidity and mortality

Exposure to forces of nature (X30-X39)

• Exposure to excessive natural cold (X31)

  • X31 - Exposure to excessive natural cold
  • X31.XXXA - Exposure to excessive natural cold, initial encounter
  • X31.XXXD - Exposure to excessive natural cold, subsequent encounter
  • X31.XXXS - Exposure to excessive natural cold, sequela