Acquired deformity of pinna, bilateral

This code signifies a non-congenital malformation or distortion affecting both external ears (pinnas). This acquired deformity can result from various causes such as trauma, infection, or inflammatory processes, leading to an abnormal shape or structure of the auricle. It does not include congenital anomalies.

Use this code when documentation clearly indicates an acquired, rather than congenital, deformity of both pinnas. This code is appropriate for conditions like cauliflower ear (perichondrial hematoma), keloids, or other structural changes affecting both ears post-birth. Supporting documentation should specify the bilateral involvement and the acquired nature of the deformity.

• Ensure documentation explicitly states "bilateral" and "acquired" to support this specific code.
• Distinguish carefully between acquired deformities and congenital malformations, which are coded differently.
• Look for an underlying cause (e.g., trauma, infection) that may require an additional external cause code or a code for the primary condition.