T70.29

Other effects of high altitude

Not billable — category only FY2026 2025-10-01 → 2026-09-30

Exclusions 3 never code together

Excludes2

Excludes2

Excludes2 — not included here, but the patient may have both. Code both when documented.

7th character 3

A initial encounter

D subsequent encounter

S sequela

Instructional notes 8

Inclusion terms

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

Index entries leading here 17

Disease, diseased — see also Syndrome
- Acosta's T70.29
- alpine T70.29
- Andes T70.29
- Monge's T70.29
Acosta's disease T70.29
Aerodontalgia T70.29
Sickness
- alpine T70.29
- Andes T70.29
- aviator's T70.29
- balloon T70.29
- mountain T70.29
Alpine sickness T70.29
Anoxia (pathological) R09.02
- altitude T70.29
- due to
  - high altitude T70.29
High
- altitude effects T70.20
  - anoxia T70.29
Andes disease T70.29
Effect, adverse
- high altitude NEC T70.29
  - anoxia T70.29
Syndrome — see also Disease
- low
  - atmospheric pressure T70.29
Barodontalgia T70.29
Barotrauma T70.29
- odontalgia T70.29
Edema, edematous (infectious) (pitting) (toxic) R60.9
- lung J81.1
  - due to
    - high altitude T70.29
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.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.