Acquired deformity of pinna, left ear

This code describes a non-congenital structural abnormality of the outer ear (pinna) specifically affecting the left side. This deformity can result from various causes such as trauma, infection, or inflammation, leading to an altered shape or contour of the auricle. It does not include deformities present at birth.

Use this code for documented acquired deformities of the left pinna, such as cauliflower ear (auricular hematoma), keloids, or other post-traumatic or post-inflammatory changes. Documentation should clearly specify the left ear and indicate that the deformity was not present at birth.

• Ensure documentation specifies "acquired" and "left ear" to support this code.
• Distinguish from congenital deformities of the pinna (Q17.x series).
• Code any underlying cause (e.g., trauma, infection) as an additional diagnosis, if applicable.