The ICD-10 injury mortality diagnosis matrix

Area of Science:

• Public Health
• Epidemiology
• Biostatistics

Background:

• The International Classification of Diseases, 10th Revision (ICD-10) contains over 1200 codes for injuries (Chapter XIX).
• Analyzing injury mortality data is complex due to the volume and structure of ICD-10 codes.
• Standardized methods are needed to effectively utilize multiple cause of death data for injury research.

Purpose of the Study:

• To develop and present an ICD-10 injury mortality diagnosis matrix.
• To cross-classify injury body region by nature of injury for standardized presentation.
• To demonstrate the matrix's utility with United States 2002 injury mortality data.

Main Methods:

• Organized ICD-10 diagnosis codes by body region and nature of injury.
• Created a matrix to standardize the presentation of injury diagnoses.
• Applied the matrix to analyze United States 2002 injury mortality data.

Main Results:

• In 2002, 161,269 US deaths involved underlying injury causes, with 247,195 injury diagnoses mentioned.
• The matrix revealed 30% of diagnoses were head/neck injuries, 17% torso, and 28% system-wide.
• Open wounds constituted 17% of diagnoses, with nearly half being traumatic brain injuries.

Conclusions:

• Multiple cause of death data is an underutilized resource for injury research.
• The developed ICD-10 injury mortality diagnosis matrix facilitates analysis of complex injury data.
• Refined analytical techniques are necessary for deaths with multiple contributing injury diagnoses.