Abnormal microbiolog findings in specmn from resp org/thrx

This code indicates the presence of unusual or unexpected microorganisms identified through laboratory analysis of samples taken from the respiratory system or thoracic cavity. It signifies a positive finding of bacteria, viruses, fungi, or parasites that deviates from normal flora or expected results, without necessarily indicating an active infection.

Apply this code when laboratory results from respiratory or thoracic specimens (e.g., sputum, bronchoalveolar lavage, pleural fluid) show abnormal microbial growth or identification, but a definitive diagnosis of an infectious disease (e.g., pneumonia, bronchitis) has not yet been established or is ruled out. This code is appropriate for reporting incidental findings or when the clinical significance of the microbial presence is still under investigation.

• Do not use this code if a definitive diagnosis of an infection is made; instead, code the specific infection.
• Distinguish from colonization (Z22.-), which implies the presence of microorganisms without disease; this code suggests an abnormal finding that may or may not be pathogenic.
• Ensure documentation clearly states the abnormal microbiological finding and the specimen source (respiratory organs or thorax).