Figure 17: Number of hospital separations for all diagnoses* ICD-10-AM coded
as J09, J10 or J11, Australia, 2004-2009, by week of separation

This figure presents the number of hospital separations for all diagnoses ICD-10-AM coded
as J09, J10 or J11 between 2004 and 2009 by week of separation. It highlights that in
comparison to the weekly 2004-2008 mean number of influenza associated separations, in
2009 there was not only a substantial increase in the number of weekly separations, but also
an earlier, more intensive, increase and peak. However, the overall number of weeks that
separations were above apparent baseline activity was similar.