• Pneumonia diagnoses will bucket into DRG 195 Simple Pneumonia or DRG 179 Complex Pneumonia. • When possible, the organism or “suspected” organism causing pneumonia should be documented. • Complex Pneumonia has higher expected length of stay (GLOS) and relative weight (RW).

Multifocal atrial tachycardia is an unusual variant of ectopic atrial tachycardia. As seen in Figure 4, it is characterized by an irregular rhythm with clearly visible P-waves (on the contrary to atrial fibrillation ) but the P-wave morphology varies from one beat to another.