T70.20

T70.20: Unspecified effects of high altitude

Non-billable headerICD-10-CM

T70.20 is a non-billable header ICD-10-CM code for unspecified effects of high altitude. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

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

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 inherited from the categories above T70.20

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.

Alphabetic index entries that lead here

Disease, diseased›altitude
High›altitude effects
Sickness›altitude

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T70.20

3 child codes. Green means billable.

Other codes under T70.2

T70.29Other effects of high altitude