Table 13.
Differences in Disease Capture by Rank for ICD-9-CM and ICD-10-CM for Diagnoses Related to Terrorism
| Terrorism | ICD-9-CM Rank | ICD-10-CM Rank | Explanation |
| Explosion of marine weapons | 2 | 4 | I-10 describes who is injured, whether it is initial encounter, etc. Does not specify what type of weapon is used |
| Destruction of aircraft | 2 | 4 | Same as above but I-10 does not specify how aircraft was destroyed |
| Other explosions and fragments | 2 | 4 | Same as above but I-10 does not specify what caused the explosion |
| Fires, conflagration, hot substances | 2 | 4 | Same as above but I-10 does not specify the cause |
| Firearms | 2 | 4 | Same as above but I-10 does not specify type of firearm used |
| Nuclear weapons | 2 | 4 | Same as above but I-10 does not specify which type of nuclear weapon is used |
| Biological weapons | 2 | 4 | Same as above but I-10 does not specify which type of biological weapon is used |
| Chemical weapons | 2 | 4 | Same as above but I-10 does not specify which type of chemical weapon is used |
| Terrorism unspecified | 1 | 5 | Not captured in I-9 |
| Sequelae of terrorism | 2 | 5 | I-10 uses seventh digit extension for late effects; I-9 does not capture exact type |
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