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Central Distributor SID: Description of Data Elements

I10_INJURY_FALL - Mechanism of injury: fall
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes

The mechanism of injury is determined by the External Cause of Morbidity Codes and is consistent with the classification system used by the Centers for Disease Control and Prevention (CDC) and documented at

Beginning in the 2018 NEDS and the 2019 State databases, HCUP includes 12 data elements that identify the mechanism of the injury: cutting/piercing, drowning, falling, fire, firearm, machinery, motor vehicle traffic, natural/environmental, overexertion, poisoning, suffocation, and being struck by or against. HCUP also includes three data elements that identify the intent of the injury: unintentional, assault, and self-harm. If multiple injuries are reported, more than one mechanism and intent may be identified.

From quarter four of 2015 through 2017, the data element I10_NEOMAT was used to identify discharges with neonatal and/or maternal diagnoses and procedures. The information on coding is available in the report on HCUP Quality Control Procedures posted on all HCUP database documentation web pages.

For the fourth quarter of 2015 through 2017, the mechanism of injury data elements are not included on any HCUP databases as HCUP worked with the Centers for Disease Control and Prevention (CDC) to finalize the coding criteria for ICD-10-CM diagnoses.

For data prior to the fourth quarter of 2015, the mechanism of injury of fall is stored in the data element INJURY_FALL to indicate the use of the ICD-9-CM coding system.

Uniform Values
VariableDescriptionValueValue Description
I10_INJURY_FALLMechanism of injury: fall0No mechanism of injury of fall
1Mechanism of injury of fall
State Specific Notes



Internet Citation: HCUP Central Distributor SID Description of Data Elements - All States. Healthcare Cost and Utilization Project (HCUP). August 2008. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 8/12/08