T70.29XS

T70.29XS: Other effects of high altitude, sequela

Billable / specific codeICD-10-CMPOA exempt

T70.29XS is a billable, specific ICD-10-CM code for other effects of high altitude, sequela. It is valid for submission on a claim.

Check T70.29XS with the rest of the claim: free scrubber

7th character "S": sequela

The appropriate 7th character is to be added to each code from category T70

A: initial encounter
D: subsequent encounter
S: sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Alpine sickness
Anoxia due to high altitude
Barotrauma NOS
Hypobaropathy
Mountain sickness

Excludes2 inherited from the categories above T70.29XS

Not part of this code, but both may be coded when both are present.

Written on T70.2: Other and unspecified effects of high altitude

polycythemia due to high altitude (D75.1)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

T70.29XS is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56612Billing and Coding: CT of the Head
A57326Billing and Coding: Electrocardiograms

Code history

Unchanged in every release from FY2024 to FY2027.