Blister (nonthermal) of right ear, sequela

This code signifies a lasting effect or complication resulting from a non-thermal blister on the right ear. A sequela indicates that the acute phase of the blister has resolved, but residual symptoms, damage, or functional impairment persist. This could include scarring, altered sensation, or chronic discomfort directly attributable to the previous blister.

Use this code when documentation clearly indicates a current condition or symptom on the right ear that is a direct consequence of a resolved non-thermal blister. This code is appropriate when the patient is no longer in the acute phase of the blister but is being treated for its long-term effects. Physician notes should explicitly link the current finding to a past non-thermal blister on the right ear.

• Always ensure documentation specifies "sequela" or clearly describes a residual condition from a resolved blister, not an active one.
• Verify the laterality (right ear) is explicitly stated in the medical record.
• Do not use this code for active, acute non-thermal blisters; instead, refer to codes for current blisters.