ICD-10 Code H59.03 – Cystoid macular edema following cataract surgery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H59.03 – Cystoid macular edema following cataract surgery
What it is
H59.03 identifies cystoid macular edema that develops after cataract surgery. Use it when the chart documents postoperative swelling in the macula causing reduced central vision.
Clinical signs
Typical findings include blurred or decreased central vision, metamorphopsia, and macular thickening on exam or imaging. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider links the macular edema to prior cataract surgery, including postoperative follow-up visits. It is appropriate when the record specifically states cystoid macular edema after cataract extraction or similar wording. Check documentation if the cause is unclear.
Do not use for
Do not use H59.03 for macular edema unrelated to cataract surgery or for nonspecific postoperative eye complaints. If the record does not identify the cataract surgery connection, check documentation.
Coding tip
Confirm the postoperative relationship in the note before assigning H59.03.