Table 3

Health information used for respiratory syndrome and influenza-like illness coding and respective code distribution in 2009
Data source Syndrome Health information codes Code distribution 2009
EMD-AT respiratory syndrome AMPDS v12.0 Boolean operator : OR N %
6C1 Breathing problems - Abnormal breathing 465 26.9
6C1A Breathing problems - abnormal breathing + asthma 71 4.1
6D1 Breathing problems - Not alerting 750 43.3
6D1A Breathing problems - not alerting + asthma 230 13.3
6D2 Breathing problems - Difficulty in speaking between breaths 22 1.3
6D2A Breathing problems - difficulty in speaking between breaths + asthma 4 0.2
6D3 Breathing problems - changing colour 154 8.9
6D3A Breathing problems - changing colour + asthma 31 1.8
6D4 Breathing problems - clammy - -
6D4A Breathing problems - clammy + asthma - -
26A4 Sick person - Fever/chills 4 0.2
26O26 Sick person - Sore throat (without difficulty breathing or swallowing) - -
Total 1731 100.0
EP-AT ILI* ICD-10 Boolean operator : OR
J00 Acute nasopharyngitis [common cold] 1 1.6
J02 Acute pharyngitis (includes sore throat) - -
J04 Acute laryngitis and tracheitis 3 4.7
J06 Acute upper respiratory infections of multiple and unspecified sites 8 12.5
J09 Avian Influenza - -
J10 Influenza due to other identified influenza virus 1 1.6
J11 Influenza, virus not identified 8 12.5
J16 Pneumonia due to other infectious organisms, not elsewhere classified 3 4.7
J18 Pneumonia, organism unspecified 28 43.8
R05 Cough 3 4.7
R50 Fever of other and unknown origin 9 14.1
Total 64 100.0
EP-BE ILI* ICD-9 Boolean operator : OR
460 Acute nasopharyngitis [common cold] 22 1.2
462 Pharyngitis, acute - -
464 Acute laryngitis and tracheitis - -
464.0 Acute laryngitis - -
464.1 Acute tracheitis - -
464.2 Acute laryngotracheitis - -
465 Acute upper respiratory infections of multiple or unspecified sites - -
465.0 Acute laryngopharyngitis - -
465.8 Acute upper respiratory infections of other multiple sites - -
465.9 Acute upper respiratory infections of unspecified site - -
480.9 Viral pneumonia unspecified 56 3.0
488 Influenza due to certain identified influenza viruses - -
488.0 Influenza due to identified avian influenza virus - -
488.1 Influenza due to identified novel h1n1 influenza virus - -
487 Influenza - -
487.0 Influenza with pneumonia - -
487.1 Influenza with other respiratory manifestations - -
487.8 Influenza with other manifestations 109 5.9
486 Pneumonia organism unspecified 986 53.2
786.2 Cough 63 3.4
780.6 Fever and other physiologic disturbances of temperature regulation 618 33.3
Total 1854 100.0
ED-BE ILI* chief complaint or working diagnosis, Boolean operator : OR
free text including cough, muscle pain, flu, H1N1, sore throat, influenza, fever na na
Total 5681 100.0
ED-ES ILI* case definition, Boolean operator : AND
i) the appearance of sudden symptoms and at least one of the four general symptoms (fever or slight fever (feverishness), headache, muscle pain, general malaise), and (ii) at least one of the three respiratory symptoms (cough, sore throat, difficulty breathing), as well as (iii) the absence of other diagnostic suspicion. 1127 100.0
Total$ 1127 100.0

*ILI = influenza-like illness.

na = not applicable.

Rosenkötter et al.

Rosenkötter et al. BMC Public Health 2013 13:905   doi:10.1186/1471-2458-13-905

Open Data