Conjunctival cysts, left eye

This code signifies the presence of a fluid-filled sac or lesion located on the conjunctiva of the left eye. These cysts are typically benign and can arise from various causes, including inflammation, trauma, or congenital factors. They may present as clear, elevated lesions on the ocular surface.

Apply this code when documentation explicitly states a conjunctival cyst affecting the left eye. This includes conditions such as inclusion cysts, retention cysts, or other benign cystic formations of the conjunctiva. Supporting documentation should clearly specify the location as the left eye.

• Ensure laterality is precisely documented; avoid using unspecified eye codes when the left eye is known.
• Distinguish from other conjunctival lesions like pterygium (H11.0-) or pinguecula (H11.1-).
• If the cyst is post-procedural or traumatic, consider additional external cause codes or complication codes.