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

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

The letter F section of the FY 2026 External Cause of Injuries Index carries 21 main terms, from Factors to Frozen. 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

485

Index Entries

Direct Codes

Cross-refs

A B C D EFG H I J K L M N O P R S T U V W

21 of 21 shown

Factors, supplementalSub-entries
alcohol
blood level
less than 20mg/100ml Y90.0
presence in blood, level not specified Y90.9
View all 17 entries for Factors →
FailureSub-entries
in suture or ligature during surgical procedure Y65.2
mechanical, of instrument or apparatus (any) (during any medical or surgical procedure) Y65.8
sterile precautions (during medical and surgical care) see Misadventure, failure, sterile precautions, by type of procedure
to
View all 9 entries for Failure →
Fall, falling (accidental)Sub-entries W19 Non-billable
building W20.1 Non-billable
burning (uncontrolled fire) X00.3 Non-billable
down
embankment W17.81 Non-billable
View all 309 entries for Fall →
Fallen on bySub-entries
animal (not being ridden) NEC W55.89 Non-billable
Felo-de-seCross-ref See: Suicide
Fight (hand) (fists) (foot)Cross-ref See: Assault, fight
Fire (accidental)Cross-ref See: Exposure, fire
Firearm dischargeCross-ref See: Discharge, firearm
Fireball effects from nuclear explosion in war operationsCross-ref See: War operations, nuclear weapons
Fireworks (explosion)Code W39 Non-billable
Flash burns from explosionCross-ref See: Explosion
Flood (any injury) (caused by)Sub-entries X38 Non-billable
collapse of man-made structure causing earth movement X36.0 Non-billable
tidal wave see Forces of nature, tidal wave
Food (any type) inSub-entries
air passages (with asphyxia, obstruction, or suffocation) T18 Non-billable see categories T17 and
alimentary tract causing asphyxia (due to compression of trachea) T18 Non-billable see categories T17 and
Forces of natureSub-entries X39.8 Non-billable
avalanche X36.1 Non-billable
causing transport accident see Accident, transport, by type of vehicle
blizzard X37.2 Non-billable
cataclysmic storm X37.9 Non-billable
View all 54 entries for Forces of nature →
Foreign bodySub-entries
aspiration see Index to Diseases and Injuries, Foreign body, respiratory tract
embedded in skin W45 Non-billable
entering through
natural orifice W44.9 Non-billable
View all 69 entries for Foreign body →
Forest fire (exposure to)Cross-ref See: Exposure, fire, uncontrolled, not in building
Found injuredSub-entries X58 Non-billable
from exposure (to) see Exposure
on
highway, road (way), street V89.9 Non-billable
railway right of way V81.9 Non-billable
Fracture (circumstances unknown or unspecified)Sub-entries X58 Non-billable
due to specified cause NEC X58 Non-billable
FreezingCross-ref See: Exposure, cold
FrostbiteSub-entries X31 Non-billable
due to man-made conditions see Exposure, cold, man-made
FrozenCross-ref See: Exposure, cold

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.