ICD-10-CM External Cause Index · FY 2026 Letter H

External Cause Index Terms Starting With H ICD-10-CM

The letter H section of the FY 2026 External Cause of Injuries Index carries 15 main terms, from Hailstones to Hypobarism. Terms with a direct code link straight to the code page, cross references point to the main term that holds the codes, and terms with a handful of sub-entries render in full right here. The largest terms open their own full index page.

✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026

Main Terms

Index Entries

Direct Codes

Cross-refs

A B C D E F GHI J K L M N O P R S T U V W

15 of 15 shown

Hailstones, injured byCode X39.8 Non-billable
Hanged herself or himselfCode T71.162 Non-billable
Hanging (accidental)Sub-entries T71.16 Non-billable see also
legal execution see Legal, intervention, specified means NEC
Heat (effects of) (excessive)Sub-entries X30 Non-billable
due to
man-made conditions W92 Non-billable
on board watercraft V93.29 Non-billable
fishing boat V93.22 Non-billable
View all 14 entries for Heat →
HemorrhageSub-entries
delayed following medical or surgical treatment without mention of misadventure see Index to Diseases and Injuries, Complication(s)
during medical or surgical treatment as misadventure see Index to Diseases and Injuries, Complication(s)
HighSub-entries
altitude (effects) see Air, pressure, low
level of radioactivity, effects see Radiation
pressure (effects) see Air, pressure, high
temperature, effects see Heat
Hit, hitting (accidental) byCross-ref See: Struck by
Hitting againstCross-ref See: Striking against
Homicide (attempt) (justifiable)Cross-ref See: Assault
HotSub-entries
place, effects see also Heat
weather, effects X30 Non-billable
House fire (uncontrolled)Cross-ref See: Exposure, fire, uncontrolled, building
Humidity, causing problemCode X39.8 Non-billable
HungerCode X58 Non-billable
Hurricane (any injury)Code X37.0 Non-billable
Hypobarism, hypobaropathyCross-ref See: Air, pressure, low

Related References

External Cause of Injuries Index Index to Diseases and Injuries ICD-10-CM Code Lookup

Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM External Cause of Injuries Index release files, effective October 1, 2025 through September 30, 2026.