Pneumonia due to Escherichia coli

This code identifies pneumonia specifically caused by an infection with Escherichia coli. It indicates a bacterial lung infection where E. coli has been identified as the causative pathogen. This condition can range from community-acquired to healthcare-associated pneumonia.

Use this code when documentation clearly states a diagnosis of pneumonia and laboratory results (e.g., sputum culture, blood culture) confirm Escherichia coli as the etiologic agent. This code is appropriate when the physician explicitly links the pneumonia to E. coli infection.

• Always confirm the specific bacterial pathogen through physician documentation and/or lab reports.
• Do not use this code for pneumonia where E. coli is suspected but not confirmed, or for pneumonia due to other bacterial organisms.
• Sequence this code as the primary diagnosis if the E. coli pneumonia is the reason for the encounter, followed by any associated conditions.