ICD-10 Code H59.012 – Keratopathy (bullous aphakic) following cataract surgery, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H59.012 – Keratopathy (bullous aphakic) following cataract surgery, left eye
What it is
This code identifies bullous aphakic keratopathy in the left eye after cataract surgery. It describes corneal swelling with blister-like changes that occur in an eye without its natural lens.
Clinical signs
Typical findings include corneal edema, epithelial bullae, pain, tearing, and blurred vision. Clinical features vary; refer to documentation for laterality and the postprocedural cause.
When to use this code
Use H59.012 when the record states bullous aphakic keratopathy in the left eye and links it to prior cataract surgery. It is appropriate when the provider documents this as a postoperative complication or sequela. Check documentation if the note only says corneal edema or another nonspecific corneal disorder.
Do not use for
Do not use this code for keratopathy in the right eye, both eyes, or unspecified eye. It also should not be used when the chart does not clearly connect the condition to cataract surgery.
Coding tip
Always verify the eye laterality and the postoperative relationship before assigning H59.012.