2026 ICD-10-CM Diagnosis Code X37Cataclysmic storm

ICD-10-CM Codes›V01–Y99›X30-X39›X37

ICD-10-CM X37
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

X37 is a non-billable ICD-10-CM category code for cataclysmic storm, so it cannot be submitted on claims. Use a more specific code from this category instead, such as X37.0XXA, X37.0XXD, X37.0XXS, and X37.1XXA.

Code Identity

ICD-10-CM Code
X37
Billable Status
No — Non-Billable Category
Code Describes
Cataclysmic storm
Chapter
X30-X39
Exposure to forces of nature

Code Classification

ChapterV01–Y99External causes of morbidity and mortality
SectionX30-X39Exposure to forces of nature
CategoryX37Cataclysmic storm
This CodeX37Cataclysmic storm

Specific Coding for Cataclysmic stormOverview

Non-specific codes like X37 require more characters. Use one of these billable codes instead:

  • X37.0 for Hurricane

  • X37.1 for Tornado

  • X37.2 for Blizzard (snow)(ice)

  • X37.3 for Dust storm

  • X37.4 for Tidalwave

  • X37.41 for Tidal wave due to earthquake or volcanic eruption

  • X37.42 for Tidal wave due to storm

  • X37.43 for Tidal wave due to landslide

  • X37.8 for Other cataclysmic storms

  • X37.9 for Unspecified cataclysmic storm

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

7th Character Note

  • The appropriate 7th character is to be added to each code from category X37

7th Character

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About X37Overview

Is X37 (Cataclysmic storm) a billable code?

No. This is a category header that groups the codes for cataclysmic storm, and headers cannot be submitted on claims. Claims for cataclysmic storm need a more specific code from this category, such as X37.0XXA, X37.0XXD, and X37.0XXS.