Preauricular cyst. 1  ICD-9-CM 744.47 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 744.47 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
The most common silent reflux symptoms are hoarseness, chronic cough, throat-clearing, post-nasal drip, sinusitis, sore or burning throat, difficulty swallowing, shortness of breath, snoring, sleep apnea, bad breath, tooth decay, asthma, and COPD.
There are two possible causes for the problem you describe: chronic rhinitis or acid reflux. The first is a problem with the nose and sinuses causing excessive mucus production. The upper respiratory tract - which connects the nose, sinuses and throat - is lined with a wet membrane covered in cells that secrete mucus.