T70.29
Other effects of high altitude
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 3 never code together
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 8
T70.29code
Inclusion terms
- Alpine sickness
- Anoxia due to high altitude
- Barotrauma NOS
- Hypobaropathy
- Mountain sickness
S00-T88chapter
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
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 17
- Disease, diseased — see also Syndrome
- Acosta's disease T70.29
- Aerodontalgia T70.29
- Sickness
- Alpine sickness T70.29
- Anoxia (pathological) R09.02
- High
- Andes disease T70.29
- Effect, adverse
- Syndrome — see also Disease
- low
- atmospheric pressure T70.29
- low
- Barodontalgia T70.29
- Barotrauma T70.29
- odontalgia T70.29
- Edema, edematous (infectious) (pitting) (toxic) R60.9
- Hypobarism T70.29
- Hypobaropathy T70.29
- Monge's disease T70.29
- Mountain
- sickness T70.29
Alongside this code 1 same parent — T70.2
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.