T70.20XA Unspecified effects of high altitude, initial encounter
Instructional Notes:
T70.20XA Description: Unspecified effects of high altitude, initial encounter ↓
T70.20 Description: Unspecified effects of high altitude ↓
T70.2 Description: Other and unspecified effects of high altitude Exclude2:
polycythemia due to high altitude (D75.1)
↓
T70 Description: Effects of air pressure and water pressure ↓
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.-)