Peripheral pterygium, stationary, bilateral

This code signifies the presence of a non-progressive, wedge-shaped growth of conjunctival tissue that extends onto the cornea in both eyes. This benign lesion typically originates from the limbus and is characterized by its stable nature, meaning it is not actively growing or inflamed.

Apply this code when documentation explicitly states bilateral pterygium that is noted as "stationary," "stable," or "non-progressive." It is appropriate for patients presenting with established pterygia that are not undergoing active treatment for growth or inflammation.

• Ensure documentation specifies "stationary" or "non-progressive" for both eyes; otherwise, consider codes for unspecified or progressive pterygium.
• Do not use this code if the pterygium is inflamed, growing, or requires surgical intervention; instead, select a more specific code reflecting the active state.
• Distinguish from pinguecula, which is a yellowish patch on the conjunctiva that does not invade the cornea.