X38
ICD-10Non-billable categoryFlood
Official ICD-10-CM descriptor (FY2026)
Flood
X38 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Flood arising from remote storm
- Flood of cataclysmic nature arising from melting snow
- Flood resulting directly from storm
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- collapse of dam or man-made structure causing earth movement (X36.0)
- tidal wave NOS (X37.41)
- tidal wave caused by storm (X37.42)
7th character
- The appropriate 7th character is to be added to code X38
Permitted 7th characters
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.