X37.9Header code — not billable
Unspecified cataclysmic storm
- Chapter
- 20. External causes of morbidity
- Category
- X37
- Effective date
- October 1, 2026
Related codes in category X37
X37Cataclysmic stormX37.0HurricaneX37.0XXAHurricane, initial encounterYesX37.0XXDHurricane, subsequent encounterYesX37.0XXSHurricane, sequelaYesX37.1TornadoX37.1XXATornado, initial encounterYesX37.1XXDTornado, subsequent encounterYesX37.1XXSTornado, sequelaYesX37.2Blizzard (snow)(ice)X37.2XXABlizzard (snow)(ice), initial encounterYesX37.2XXDBlizzard (snow)(ice), subsequent encounterYes
Frequently asked questions
What is ICD-10 code X37.9?
X37.9 is an ICD-10-CM diagnosis code for Unspecified cataclysmic storm.
Is X37.9 a billable code?
No. X37.9 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is X37.9 in?
X37.9 falls under Chapter 20: External causes of morbidity.
When did X37.9 become effective?
X37.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to X37.9?
X37.9 belongs to category X37, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.