Other otosclerosis

This code signifies a form of otosclerosis that does not fit into the more specific categories of otosclerosis involving the oval window or cochlea. It represents an abnormal bone growth in the middle ear, leading to progressive hearing loss, often conductive in nature, due to the fixation of the stapes bone.

Use this code when documentation specifies otosclerosis but does not provide further detail regarding the specific anatomical location (e.g., oval window or cochlear involvement). It is appropriate for cases where the physician diagnoses otosclerosis without specifying the type, or when the otosclerosis affects other parts of the ossicular chain or labyrinth.

• Ensure the physician's documentation clearly states "otosclerosis" without further specification of type.
• Avoid using this code if the documentation specifies oval window otosclerosis (387.0) or cochlear otosclerosis (387.1).
• Consider sequencing this code as a primary diagnosis when it is the reason for the encounter, especially for evaluation or management of the condition.