Corrosions of left ear drum, sequela

This code signifies a long-term or late effect resulting from a corrosive injury to the left eardrum. This could include scarring, perforation, or other permanent damage that occurred after the initial corrosive exposure has healed. The sequela indicates a residual condition rather than an active, acute injury.

Apply this code when documenting a patient presenting with a chronic issue directly attributable to a past corrosive burn of the left tympanic membrane. This is appropriate for follow-up visits addressing the lasting consequences of such an injury, such as hearing loss or recurrent infections due to a persistent perforation. Do not use for the initial acute corrosive injury.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., hearing loss, chronic otitis media).
• Ensure documentation clearly links the current condition to a past corrosive injury of the left eardrum.
• The "S" seventh character indicates sequela and should only be used for complications or conditions arising as a direct result of the initial injury.