E09.36

HCC Category Mapping

What This Code Means

Diabetes caused by medications or chemicals that has caused clouding of the eye lens (cataract).

Coding Tips

• •Document whether the cataract is unilateral or bilateral for complete clinical documentation
• •Verify the cataract is related to the drug-induced diabetes rather than another cause

Clinical Significance

Drug or chemical induced diabetes mellitus with diabetic cataract indicates lens opacification directly attributable to drug-induced diabetes. Diabetic cataracts develop due to osmotic lens changes from chronic hyperglycemia, causing sorbitol accumulation within the lens fibers. These cataracts may develop more rapidly and at younger ages than typical age-related cataracts, and surgical intervention is often required to restore functional vision.

Documentation Requirements

• ✓The causative drug or chemical must be documented and coded separately.
• ✓The provider must establish a causal link between the diabetes and the cataract, distinguishing it from age-related or other causes of lens opacity.
• ✓Ophthalmologic examination findings including visual acuity and lens examination results should be documented.

Commonly Confused Codes