Table 1 Generating expert rules from an ICD-9-CM coding guide.

label 518.0

if document contains

 Pulmonary collapse

 pulmonary collapse OR

 Atelectasis

 atelectasis OR

 Collapse of lung

 collapse of lung OR

 Middle lobe syndrome

 middle lobe syndrome

 Excludes:

AND document NOT contains

  atelectasis:

   congenital (partial) (770.5)

 congenital atelectasis AND

   primary (770.4)

 primary atelectasis AND

   tuberculous, current disease (011.8)

 tuberculous atelectasis

add label 518.0