4D.
I
NJURY
-R
ELATED
I
NPATIENT
D
ISCHARGESAND
E
MERGENCY
R
OOM
V
ISITSBY
I
NTENTAND
M
ECHANISMOF
I
NJURY
Prior to 2009, injury hospitalizations and injury-related emergency room visits were defined here through the range of ICD-
9-CM codes 800-999 used as the first-listed diagnosis. In addition, the supplementary classification of external causes of
injury and poisoning (ICD-9-CM codes E800?E999) is used to permit the classification of environmental events,
circumstances, and conditions as the cause of injury, poisoning, and other adverse effects. The ?E? code classification is
used to describe both the
mechanism
of external cause of injury (e.g., motor vehicle traffic, fall, poisoning), but also the
manner or
intent
of the injury (e.g., suicide, assault, accident).
In 2009, the reporting requirements for hospitals were revised and the non-injury first-listed diagnoses may also have an
external cause of injury code. Beginning with the 2009 edition of this report, the reader is advised that the number of
suicides, accidents, etc. shown in
Table 4D-1
and
Table 4D-2
no longer reflect only those where the principal diagnosis
was an injury. To continue to do so would only mean undercounting the external causes of injury. As an example, in 2009
forward, among the suicide attempt-related ER visits,
injury and poisoning
,
mental disorders
,
chronic disease,
infectious
disease
, or
ill-defined conditions
were identified as the first-listed diagnosis.
Arizona Health Status and Vital Statistics 2013
257
