Unspecified perichondritis of external ear, bilateral

This code signifies an inflammatory condition affecting the perichondrium (the connective tissue surrounding cartilage) of both external ears, where the specific cause or type of perichondritis has not been documented. It indicates a bilateral ear infection or inflammation without further diagnostic specificity.

Apply this code when documentation indicates perichondritis of both external ears but lacks details regarding the etiology (e.g., infectious, traumatic, autoimmune) or a more specific classification. This is appropriate when the provider has not specified the type of perichondritis, and the condition affects both ears.

• Avoid using this code if a more specific type of perichondritis (e.g., infectious, traumatic) is documented; instead, use the appropriate specific code.
• Ensure the medical record clearly states "bilateral" involvement of the external ears to support this code.
• If only one ear is affected, select the laterality-specific code for unspecified perichondritis (e.g., right or left).