What abbreviations would most likely be used to document a patient experiencing a build-up of mucus in their body?

In medical documentation, abbreviations such as "COPD" (Chronic Obstructive Pulmonary Disease) may be used if the mucus build-up is related to respiratory conditions. "CXR" (chest X-ray) might also be noted if imaging is needed to assess mucus levels in the lungs. Additionally, "SOB" (shortness of breath) could be documented if the mucus is affecting the patient's breathing.