Table 3.

Comparison of Rankings between ICD-9-CM and ICD-10-CM and Its Ability to Capture the Disease

	ICD-9-CM	ICD-10-CM Rank (Mean) Rank (Mean)	P Value
Reportable Diseases*** (n=162 for both I-9 and I-10)	3.85	4.61	<0.001
Top 10 Mortality Diagnoses*** (n=76 for both I-9 and I-10)	3.55	4.97	<0.001
Terrorism*** (n=10 for both I-9 and I-10)	1.90	4.20	<0.001

P values determined by Mann Whitney U nonparametric test:

• ^*Significan p<0.05

• ^**High Significan p<0.01

• ^***Very High Significan p<0.001

• N = number of disease rankings

Ranking:

• 5=Diagnosis is fully captured by the code/codes

• 4=Diagnosis is almost fully captured by the code/codes

• 3=Diagnosis is partially captured by the code/codes

• 2=Diagnosis is less than partially captured by the code/codes

• 1=Diagnosis is not captured by the code/codes