X31
Exposure to excessive natural cold
Non-billableCategory
Chapter: 20. External causes of morbidity
7th Character Required
The appropriate 7th character is to be added to code X31
A - initial encounter
D - subsequent encounter
S - sequela
Coding Guidelines
Inclusion Terms
- 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 (Mutually Exclusive)
These codes should never be used together with X31
- cold of man-made origin (W93.-)
- contact with or inhalation of dry ice (W93.-)
- contact with or inhalation of liquefied gas (W93.-)
