X37Header code — not billable
Cataclysmic storm
- Chapter
- 20. External causes of morbidity
- Category
- X37
- Effective date
- October 1, 2026
Related codes in category X37
X37.0HurricaneX37.0XXAHurricane, 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 encounterYesX37.2XXSBlizzard (snow)(ice), sequelaYes
Frequently asked questions
What is ICD-10 code X37?
X37 is an ICD-10-CM diagnosis code for Cataclysmic storm.
Is X37 a billable code?
No. X37 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 in?
X37 falls under Chapter 20: External causes of morbidity.
When did X37 become effective?
X37 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to X37?
X37 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.