Is W35.XXXA a billable ICD-10-CM code?

Yes. W35.XXXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does W35.XXXA sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Exposure to inanimate mechanical forces (W20-W49).

What cannot be coded together with W35.XXXA?

W35.XXXA carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

W35.XXXA

W35.XXXA — Explosion and rupture of boiler, initial encounter

Billable / specific codeICD-10-CMPOA exempt

W35.XXXA is a billable, specific ICD-10-CM code for explosion and rupture of boiler, initial encounter. It is valid for submission on a claim.

7th character "A" — initial encounter

The appropriate 7th character is to be added to code W35

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

explosion and rupture of boiler on watercraft (V93.4)

Risk adjustment

W35.XXXA 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.

Related codes at this level

Codes that share W35. If W35.XXXA is not quite right, the correct code is usually one of these.

Questions about W35.XXXA

Is W35.XXXA a billable ICD-10-CM code?: Yes. W35.XXXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does W35.XXXA sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Exposure to inanimate mechanical forces (W20-W49).
What cannot be coded together with W35.XXXA?: W35.XXXA carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.