There is a really good
article (although it's from 2014) written by AAPC's John Verhovshek, which covers this topic fairly well.
Basically two main factors decide whether a 69210 is considered billable and the cerumen removal is not bundled into the E/M:
Impaction:
-Cerumen impairs the examination of clinically significant portions of the external auditory canal, tympanic membrane, or middle ear condition;
-Extremely hard, dry, irritative cerumen causes symptoms such as pain, itching, hearing loss, etc;
-Cerumen is associated with foul odor, infection, or dermatitis; or
-Obstructive, copious cerumen cannot be removed without magnification and multiple instrumentations requiring physician skills.
Instruments used:
-The patient presents to the office for earwax removal, which requires
magnification provided by an otoscope or operating microscope, and instruments
such as wax curettes, forceps, or suction by the primary care physician/provider
or otolaryngologist. This latter situation occurs most commonly when impacted
cerumen completely covers the eardrum and the patient has hearing loss.
Documentation is always king, if the procedure done does not support 609210 based on the AAPC article and the two factors above, I would be hesitant to bill 609210 as the procedure was probably bundled into the E/M.
Here's another
forum thread on the same topic.