Is J09.X3 a billable ICD-10-CM code?

Yes. J09.X3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does J09.X3 sit in the tabular list?

Diseases of the respiratory system (J00-J99), in the block Influenza and pneumonia (J09-J18).

What cannot be coded together with J09.X3?

J09.X3 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

J09.X3

J09.X3 — Influenza due to identified novel influenza A virus with gastrointestinal manifestations

Billable / specific codeICD-10-CM

J09.X3 is a billable, specific ICD-10-CM code for influenza due to identified novel influenza a virus with gastrointestinal manifestations. It is valid for submission on a claim.

Excludes1 — never code together

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

'intestinal flu' [viral gastroenteritis] (A08.-)

Inclusion terms

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

Influenza due to identified novel influenza A virus gastroenteritis

Other codes that can never be billed with J09.X3

These codes carry an Excludes1 note pointing at J09.X3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading J09.X3 alone.

A08Viral and other specified intestinal infections

Risk adjustment

J09.X3 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.

Medicare coverage

J09.X3 is named in 13 Medicare coverage policies — 13 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52466Nebulizers - Policy Article
A52466Nebulizers - Policy Article
A52466Nebulizers - Policy Article
A52466Nebulizers - Policy Article

How J09.X3 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 J09.X3.

Influenza›due to›identified novel influenza A virus›with›digestive manifestations
Influenza›due to›identified novel influenza A virus›with›enteritis
Influenza›due to›identified novel influenza A virus›with›gastroenteritis
Influenza›due to›identified novel influenza A virus›with›gastrointestinal manifestations

Related codes at this level

Codes that share J09.X. If J09.X3 is not quite right, the correct code is usually one of these.

Questions about J09.X3

Is J09.X3 a billable ICD-10-CM code?: Yes. J09.X3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does J09.X3 sit in the tabular list?: Diseases of the respiratory system (J00-J99), in the block Influenza and pneumonia (J09-J18).
What cannot be coded together with J09.X3?: J09.X3 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.