X37: Cataclysmic storm
Codes under X37 (Cataclysmic storm). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| X37.0 | Hurricane | — |
| X37.0 | Hurricane | — |
| X37.0XXA | Hurricane, initial encounter | ✓ |
| X37.0XXA | Hurricane, initial encounter | ✓ |
| X37.0XXD | Hurricane, subsequent encounter | ✓ |
| X37.0XXD | Hurricane, subsequent encounter | ✓ |
| X37.0XXS | Hurricane, sequela | ✓ |
| X37.0XXS | Hurricane, sequela | ✓ |
| X37.1 | Tornado | — |
| X37.1 | Tornado | — |
| X37.1XXA | Tornado, initial encounter | ✓ |
| X37.1XXA | Tornado, initial encounter | ✓ |
| X37.1XXD | Tornado, subsequent encounter | ✓ |
| X37.1XXD | Tornado, subsequent encounter | ✓ |
| X37.1XXS | Tornado, sequela | ✓ |
| X37.1XXS | Tornado, sequela | ✓ |
| X37.2 | Blizzard (snow)(ice) | — |
| X37.2 | Blizzard (snow)(ice) | — |
| X37.2XXA | Blizzard (snow)(ice), initial encounter | ✓ |
| X37.2XXA | Blizzard (snow)(ice), initial encounter | ✓ |
| X37.2XXD | Blizzard (snow)(ice), subsequent encounter | ✓ |
| X37.2XXD | Blizzard (snow)(ice), subsequent encounter | ✓ |
| X37.2XXS | Blizzard (snow)(ice), sequela | ✓ |
| X37.2XXS | Blizzard (snow)(ice), sequela | ✓ |
| X37.3 | Dust storm | — |
| X37.3 | Dust storm | — |
| X37.3XXA | Dust storm, initial encounter | ✓ |
| X37.3XXA | Dust storm, initial encounter | ✓ |
| X37.3XXD | Dust storm, subsequent encounter | ✓ |
| X37.3XXD | Dust storm, subsequent encounter | ✓ |
| X37.3XXS | Dust storm, sequela | ✓ |
| X37.3XXS | Dust storm, sequela | ✓ |
| X37.4 | Tidalwave | — |
| X37.4 | Tidalwave | — |
| X37.8 | Other cataclysmic storms | — |
| X37.8 | Other cataclysmic storms | — |
| X37.8XXA | Other cataclysmic storms, initial encounter | ✓ |
| X37.8XXA | Other cataclysmic storms, initial encounter | ✓ |
| X37.8XXD | Other cataclysmic storms, subsequent encounter | ✓ |
| X37.8XXD | Other cataclysmic storms, subsequent encounter | ✓ |
| X37.8XXS | Other cataclysmic storms, sequela | ✓ |
| X37.8XXS | Other cataclysmic storms, sequela | ✓ |
| X37.9 | Unspecified cataclysmic storm | — |
| X37.9 | Unspecified cataclysmic storm | — |
| X37.9XXA | Unspecified cataclysmic storm, initial encounter | ✓ |
| X37.9XXA | Unspecified cataclysmic storm, initial encounter | ✓ |
| X37.9XXD | Unspecified cataclysmic storm, subsequent encounter | ✓ |
| X37.9XXD | Unspecified cataclysmic storm, subsequent encounter | ✓ |
| X37.9XXS | Unspecified cataclysmic storm, sequela | ✓ |
| X37.9XXS | Unspecified cataclysmic storm, sequela | ✓ |
| X37.41 | Tidal wave due to earthquake or volcanic eruption | — |
| X37.41 | Tidal wave due to earthquake or volcanic eruption | — |
| X37.41XA | Tidal wave due to earthquake or volcanic eruption, initial encounter | ✓ |
| X37.41XA | Tidal wave due to earthquake or volcanic eruption, initial encounter | ✓ |
| X37.41XD | Tidal wave due to earthquake or volcanic eruption, subsequent encounter | ✓ |
| X37.41XD | Tidal wave due to earthquake or volcanic eruption, subsequent encounter | ✓ |
| X37.41XS | Tidal wave due to earthquake or volcanic eruption, sequela | ✓ |
| X37.41XS | Tidal wave due to earthquake or volcanic eruption, sequela | ✓ |
| X37.42 | Tidal wave due to storm | — |
| X37.42 | Tidal wave due to storm | — |
| X37.42XA | Tidal wave due to storm, initial encounter | ✓ |
| X37.42XA | Tidal wave due to storm, initial encounter | ✓ |
| X37.42XD | Tidal wave due to storm, subsequent encounter | ✓ |
| X37.42XD | Tidal wave due to storm, subsequent encounter | ✓ |
| X37.42XS | Tidal wave due to storm, sequela | ✓ |
| X37.42XS | Tidal wave due to storm, sequela | ✓ |
| X37.43 | Tidal wave due to landslide | — |
| X37.43 | Tidal wave due to landslide | — |
| X37.43XA | Tidal wave due to landslide, initial encounter | ✓ |
| X37.43XA | Tidal wave due to landslide, initial encounter | ✓ |
| X37.43XD | Tidal wave due to landslide, subsequent encounter | ✓ |
| X37.43XD | Tidal wave due to landslide, subsequent encounter | ✓ |
| X37.43XS | Tidal wave due to landslide, sequela | ✓ |
| X37.43XS | Tidal wave due to landslide, sequela | ✓ |
Frequently asked questions
What is ICD-10-CM code X37?
X37 is an ICD-10-CM category covering Cataclysmic storm. It contains 74 more specific diagnosis codes, 54 of which are billable.
Is X37 a billable code?
No — X37 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example X37.0 — Hurricane). 54 of the 74 codes under X37 are billable.
What codes fall under X37?
X37 includes X37.0, X37.0, X37.0XXA, X37.0XXA, X37.0XXD, plus 69 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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