T69.1XXA Chilblains, initial encounter

Instructional Notes:

T69.1XXA
Description: Chilblains, initial encounter
↓
T69.1
Description: Chilblains
↓
T69
Description: Other effects of reduced temperature
Exclude2:
- frostbite (T33-T34)
Use Additional Code:
- code to identify source of exposure:
- Exposure to excessive cold of man-made origin (W93)
- Exposure to excessive cold of natural origin (X31)
↓
T66-T78
Description: Other and unspecified effects of external causes (T66-T78)
↓
S00-T88
Description: Injury, poisoning and certain other consequences of external causes
Exclude2:
- birth trauma (P10-P15)
- obstetric trauma (O70-O71)
Notes:
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
Use Additional Code:
- code to identify any retained foreign body, if applicable (Z18.-)