Is W94.22 a billable ICD-10-CM code?

No. W94.22 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does W94.22 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99).

W94.22

W94.22 — Exposure to reduction in atmospheric pressure while surfacing from underground

Non-billable headerICD-10-CM

W94.22 is a non-billable header ICD-10-CM code for exposure to reduction in atmospheric pressure while surfacing from underground. 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 W94

A: initial encounter
D: subsequent encounter
S: sequela

Risk adjustment

W94.22 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How W94.22 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to W94.22.

Air›pressure›change, rapid›during›ascent›while›underground

Code to one of these instead W94.22

3 child codes. Green means billable.

Related codes at this level

Codes that share W94.2. If W94.22 is not quite right, the correct code is usually one of these.

Questions about W94.22

Is W94.22 a billable ICD-10-CM code?: No. W94.22 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does W94.22 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99).