NFIRS 5.0 Element: ‘Object Involved In Injury’

Definition : The description of the object, if one was involved, that contributed to the injury of the fire service casualty.
Purpose : This field provides additional information on how a casualty occurred. The analysis of this information, in combination with other entries, may permit an understanding of the events causing the injury and a means of planning suitable preventive techniques.
Entry : Enter the two-digit code and description of the object involved in the injury. If no object was involved, check or mark the None box.

Element Specification

 Specification   Value 
Requirement Optional
Expected Length 2
Element Type Coded Field – The coded field relating to an entry in the code table. Most coded fields allow for Plus+ One codes. For these fields the expected length of the coded entry is depicted as (National length OR Plus+ One length). Only fields with this notation in the expected length column allow for Plus+ One definitions. If the user has not provided information, an empty field should be transmitted.


Here are the NFIRS codes for the ‘Object Involved In Injury’ element

Object Involved In Injury  Code 
Coupling 11
Hose, Not Charged 12
Hose, Charged 13
Water From Master Stream 14
Water From Hose Line 15
Water, Not From A Hose 16
Steam 17
Extinguishing Agent, Not Water 18
Ladder: Aerial 21
Ladder: Ground 22
Tools/Equipment 23
Knife, Scissors 24
Syringe 25
FD Vehicle/Apparatus 26
FD Vehicle Door, Including Apparatus Compartments 27
Station Sliding Pole 28
Curb 31
Door In Building 32
Fire Escape 33
Ledge 34
Stairs 35
Wall, Including Other Vertical Surfaces 36
Window 37
Roof 38
Floor or Ceiling 39
Structural Component – Other 30
Asbestos 41
Dirt, Stones, or Debris 42
Glass 43
Nails 45
Splinters 46
Embers 47
Hot Tar 48
Hot Metal 49
Biological Agents 51
Chemicals 52
Fumes, Gases, or Smoke 53
Poisonous Plants 54
Insects 55
Radioactive Materials 56
Electricity 61
Extreme Weather 62
Utility Flames, Flares, Torches 63
Heat or Flame 64
Person – Other 90
Person: Victim 91
Property And Structure Contents 92
Animal 93
Non-fire Department Vehicle 94
Gun, Including All Other Projectile Weapons 95
Object Involved – Other 00
None NN
Undetermined UU

Transactions containing ‘Object Involved In Injury’

The value of this element is captured by the following transaction :

Need more NFIRS help?

Here are some other useful ressources to learn more about NFIRS.

NFIRS Codes Cheat SheetNFIRS CodingNFIRS ExamplesFDIDsPOCsNFIRS TransactionsNFIRS ModulesNFIRS ElementsNFIRS RulesNFIRS ReferenceNFIRS Compliant ?

You can also read this NFIRS 5.0 Complete Reference Guide, and NFIRS 5.0 Design Documentation in order to have a deeper understanding of NFIRS 5.0. Here are also NFIRS 5.0 Forms ready for you to download and use.

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Last Updated on May 5, 2023