Implant cysts of iris, ciliary body or ant chamber, left eye

This code signifies the presence of an implantation cyst affecting the iris, ciliary body, or anterior chamber specifically in the left eye. These cysts are typically epithelial-lined and can arise from trauma or surgical procedures, where surface epithelium is inadvertently introduced into the anterior segment.

Apply this code when documentation clearly indicates an acquired implantation cyst in the left eye's anterior segment structures. Supporting documentation should detail the location (iris, ciliary body, or anterior chamber) and laterality.

• Ensure laterality is explicitly documented as "left eye" to support this specific code.
• Distinguish from congenital cysts (H21.4-) or other types of iris/ciliary body cysts.
• Look for a history of ocular trauma or surgery that might explain the cyst's etiology.