NFIRS 5.0 Element: ‘Human Factors’

Définition : The physical or mental state of the person before becoming a casualty.
Purpose : One purpose for understanding the human factors that contributed to the injury is to design programs that specifically deal with the problems either through education or by reengineering the environment.
Entry : Check or mark all applicable boxes describing the human factors that contributed to this person’s injury. If no preexisting human factors contributed to the injury, check or mark the None box.

Element Specification

 Specification   Value 
Requirement Optional
Expected Length 1
Multiple Choice 0 – 8
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 ‘Human Factors’ element

Human Factors  Code 
Asleep, No Known Impairment 1
Unconscious 2
Possibly Impaired By Alcohol 3
Possibly Impaired By Other Drug or Chemical 4
Possibly Mentally Disabled 5
Physically Disabled 6
Physically Restrained 7
Unattended or Unsupervised Person 8
None N

Transactions containing ‘Human Factors’

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 2, 2023