Question 1

Is W94 a billable ICD-10 code?

Accepted Answer

No, W94 is not a billable code. It is a category code that requires additional specificity. You must select a more specific code from the subcategories for billing purposes.

Question 2

What does ICD-10 code W94 mean?

Accepted Answer

ICD-10-CM code W94 represents Exposure to high and low air pressure and changes in air pressure. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

When was ICD-10 code W94 introduced?

Accepted Answer

Code W94 has been part of ICD-10-CM since 2016, when the coding system was mandated for use in the United States. This code was included in the original US implementation.

Question 4

What is the parent category for ICD-10 code W94?

Accepted Answer

The parent category for W94 is section:W85-W99 (Exposure to electric current, radiation and extreme ambient air temperature and pressure (W85-W99)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

Does W94 require a 7th character extension?

Accepted Answer

Yes, W94 requires a 7th character to specify the encounter type. Available extensions include: A (initial encounter), D (subsequent encounter), S (sequela). Use "X" as a placeholder to fill empty positions before the 7th character (e.g., W94XXA for initial encounter). The extension indicates whether this is an initial visit, follow-up, or treatment for a late effect.

W942026

Excludes18Not coded together

Notes1Additional information

7th Character Extensions3Encounter type specifiers

Excluded By2Codes that exclude this one

Is W94 a billable ICD-10 code?

What does ICD-10 code W94 mean?

When was ICD-10 code W94 introduced?

What is the parent category for ICD-10 code W94?

Does W94 require a 7th character extension?