ITIL (the Information Technology Infrastructure Library) is a best practice IT Service Management process framework initially developed by the Office of Government Commerce (OGC) within the UK government.
It may also be classified by the area of lung affected: lobar pneumonia, bronchial pneumonia and acute interstitial pneumonia; or by the causative organism. Pneumonia in children may additionally be classified based on signs and symptoms as non-severe, severe, or very severe.
Klebsiella pneumonia characteristically affects one of the upper lobes of the lung, although infection of the lower lobes is not uncommon. Examination of patients with community-acquired pneumonia usually reveals unilateral chest signs, predominantly in the upper lobes.