X38.XXXA — Flood, initial encounter
X38.XXXA is a billable, specific ICD-10-CM code for flood, 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 X38
- 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.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Flood arising from remote storm
- Flood of cataclysmic nature arising from melting snow
- Flood resulting directly from storm
Excludes1 inherited from the categories above X38.XXXA
These are not written on X38.XXXA, but they bind it: a note on a category applies to every code beneath it. Billing X38.XXXA with anything listed here is a denial.
Risk adjustment
X38.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.
Code history
X38.XXXA 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 X38. If X38.XXXA is not quite right, the correct code is usually one of these.
Questions about X38.XXXA
- Is X38.XXXA a billable ICD-10-CM code?
- Yes. X38.XXXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does X38.XXXA sit in the tabular list?
- External causes of morbidity (V00-Y99), in the block Exposure to forces of nature (X30-X39).
- What cannot be coded together with X38.XXXA?
- X38.XXXA 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 X38.XXXA (X38) and apply to it just the same.