Unspecified chorioretinal scars, unspecified eye

This code signifies the presence of scar tissue in both the choroid and retina, without further specification regarding the type or cause of the scar. It indicates a permanent alteration to the posterior segment of the eye resulting from a previous inflammatory, infectious, or traumatic event.

Use this code when documentation confirms a chorioretinal scar but lacks details about its specific morphology (e.g., atrophic, pigmented) or etiology (e.g., toxoplasmosis, histoplasmosis). This code is appropriate when the laterality of the scar is also not specified in the medical record.

• Avoid using this code if the specific type or cause of the chorioretinal scar is documented; instead, use a more specific code from the H31.0 category.
• Ensure the documentation explicitly states "unspecified" or provides no further detail regarding the scar's characteristics or laterality.
• If the laterality is known (e.g., right eye, left eye, bilateral), select the appropriate laterality-specific code (H31.001, H31.002, H31.003).