ICD-10-CM External Cause Index · FY 2026 22 Entries
Injury in the External Cause Index ICD-10-CM
The main term Injury, injured (accidental (ly)) NOS carries 22 external cause index entries pointing to 5 ICD-10-CM codes. The default entry is X58, the code the bare main term maps to; every indented line below refines the event by vehicle, object, place, or intent. External cause codes are reported after the injury code; verify the 7th character on the code page.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
22
Index Entries
5
Codes Referenced
X58
Default Code
I
Letter
22 of 22 shown
ICD-10-CM
Index Entries Under Injury 22 entries · 5 codes
Injury, injured (accidental (ly)) NOS X58 Non-billable
by, caused by, from
assault see Assault
law-enforcing agent, police, in course of legal intervention see Legal intervention
suicide (attempt) X83.8 Non-billable
due to, in
civil insurrection see War operations
war operations see War operations
homicide Y09 see also Assault
inflicted (by)
in course of arrest (attempted), suppression of disturbance, maintenance of order, by law-enforcing agents see Legal intervention
other person
stated as
accidental X58 Non-billable
intentional, homicide (attempt) see Assault
undetermined whether accidental or intentional Y33 Non-billable
purposely (inflicted) by other person (s) see Assault
self-inflicted X83.8 Non-billable
stated as accidental X58 Non-billable
specified cause NEC X58 Non-billable
undetermined whether accidental or intentional Y33 Non-billable
The info icon previews the code's description and billable status; the code link opens its full page with all notations.
Related Index Terms
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.
