X37.1 Tornado

Non-billable ICD-10-CM code.

Applicable to

• Cyclone
• Twister

Applies from X37 Cataclysmic storm

7th character note

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

7th character required

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

Code annotations containing back-references to X37.1

Back-references to X37

• Use Additional: T71.21 Asphyxiation due to cave-in or falling earth ("code for any associated cataclysm (X34-X38)")
• Code First: W20 Struck by thrown, projected or falling object ("cataclysm (X34-X39)")

Diagnosis Index entries for X37.1

• Cyclone (any injury)
• Drowning (accidental) › due to › cyclone
• Forces of nature › cataclysmic storm › cyclone
• Forces of nature › cataclysmic storm › tornado
• Forces of nature › cataclysmic storm › twister
• Forces of nature › cyclone
• Forces of nature › tornado
• Forces of nature › twister
• Tornado (any injury)

Nearby codes

• X37 Cataclysmic storm
• X37.0 Hurricane
• X37.0XXA Hurricane, initial encounter
• X37.0XXD Hurricane, subsequent encounter
• X37.0XXS Hurricane, sequela
• X37.1 Tornado (this code)
• X37.1XXA Tornado, initial encounter
• X37.1XXD Tornado, subsequent encounter
• X37.1XXS Tornado, sequela
• X37.2 Blizzard (snow)(ice)
• X37.2XXA Blizzard (snow)(ice), initial encounter