J09.X3 — Influenza due to identified novel influenza A virus with gastrointestinal manifestations
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
Excludes1 inherited from the categories above J09.X3
These are not written on J09.X3, but they bind it: a note on a category applies to every code beneath it. Billing J09.X3 with anything listed here is a denial.
Written on J09 — Influenza due to certain identified influenza viruses
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
The condition this code belongs to
Every code for the condition on one page, which one applies when, and the mistake coders make with it.
Code history
J09.X3 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
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 Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above J09.X3 (J09) and apply to it just the same.