ICD-10 Code H59.031 – Cystoid macular edema following cataract surgery, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H59.031 – Cystoid macular edema following cataract surgery, right eye
What it is
This code identifies cystoid macular edema occurring after cataract surgery in the right eye. It describes postoperative swelling in the macula, the central retina responsible for sharp vision.
Clinical signs
Typical findings include blurred or reduced central vision after cataract surgery, sometimes with distortion. Clinical features vary; refer to documentation and ophthalmic exam findings such as macular thickening or edema.
When to use this code
Use H59.031 when the provider documents cystoid macular edema as a postoperative complication of cataract surgery affecting the right eye. Apply it when the relationship to surgery is clear in the record. If laterality is not stated, check documentation.
Do not use for
Do not use this code for macular edema unrelated to cataract surgery or for unspecified eye laterality. Do not assign it if the record only says postoperative vision change without confirming cystoid macular edema.
Coding tip
Confirm both the postoperative cause and the right-eye laterality before assigning H59.031.