Table 3

Case counts with sensitivity and specificity for ICD-10-CM reporting of injury and assault, compared with the injury screener as a reference standard, with exact 95% CIs

Injury screener
Cases (n)		Injury screener
Non-cases (n)		TotalResults
Injury
 ICD-10-CM
 Cases (n)		22 09935 55757 656Positive predictive value (%)
38.33 (95% CI 37.93 to 38.73)
 ICD-10-CM
 Non-cases (n)		10 689312 577323 266Negative predictive value (%)
96.69 (95% CI 96.63 to 96.75)
 Total32 788348 134380 922 
 ResultsSensitivity (%)
67.40 (95% CI 66.89 to 67.91)		Specificity (%)
89.79 (95% CI 89.69 to 89.89)		 
Assault
 ICD-10-CM
 Cases (n)		152106258Positive predictive value (%)
58.91 (95% CI 52.64 to 64.98)
 ICD-10-CM
 Non-cases (n)		6611374 053380 664Negative predictive value (%)
98.26 (95% CI 98.22 to 98.30)
 Total6763374 159380 922 
 ResultsSensitivity (%)
2.25 (95% CI 1.91 to 2.63)		Specificity (%)
99.97 (95% CI 99.97 to 99.98)		  

  • ICD-10-CM, International Statistical Classification of Diseases and Related Health Problems, 10th Revision, Clinical Modification.