Acq stenos of ext ear canal sec to inflam & infct, unsp ear

This diagnosis code signifies a narrowing of the outer ear canal that develops due to inflammatory or infectious processes. This stenosis is not congenital but rather acquired, and the specific ear affected is not documented.

Apply this code when documentation clearly indicates an acquired, non-congenital narrowing of the external auditory canal resulting from inflammation or infection, and the laterality (left or right ear) is not specified. This is appropriate for conditions like chronic otitis externa leading to canal stricture.

• Ensure documentation specifies "acquired" stenosis; congenital stenosis codes are distinct.
• Avoid using this code if the documentation specifies the affected ear (left or right); use the more specific H61.321 or H61.322.
• Code any underlying infection or inflammation separately if it is still active and treated.