ICD-10 Code H31.099 – Other chorioretinal scars, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H31.099 – Other chorioretinal scars, unspecified eye
What it is
This code identifies chorioretinal scarring in an unspecified eye when the scar does not fit a more specific chorioretinal diagnosis. Use it for documented old retinal or choroidal scar changes, not for active inflammation.
Clinical signs
Findings may include a visible chorioretinal scar on eye exam, with pigmentary change or localized retinal atrophy. Clinical features vary; refer to documentation.
When to use this code
Use H31.099 when the provider documents an old chorioretinal scar and does not specify the right or left eye. It also fits cases where the record states “other chorioretinal scars” without a more precise diagnosis. Check documentation if the scar is linked to a specific cause or eye.
Do not use for
Do not use this code for active chorioretinal inflammation, retinal detachment, or macular disorders. If the eye is specified or a more exact chorioretinal diagnosis is documented, code that instead.
Coding tip
Confirm whether the affected eye is unspecified before assigning H31.099.