E09.319

HCC Category Mapping

What This Code Means

Diabetes caused by medications or chemicals with eye damage (retinopathy) of unspecified type without swelling in the macula.

Coding Tips

• •Distinguish this code from E09.311 by confirming absence of macular edema in documentation
• •Query provider if retinopathy type can be more specifically identified (nonproliferative vs. proliferative)

Clinical Significance

Drug or chemical induced diabetes mellitus with unspecified diabetic retinopathy without macular edema indicates retinal damage from drug-induced diabetes that has not been further characterized by stage and does not involve macular fluid accumulation. While less immediately vision-threatening than cases with macular edema, diabetic retinopathy of any type signals progressive microvascular disease and requires regular ophthalmologic monitoring to prevent vision loss.

Documentation Requirements

• ✓The causative agent must be identified and coded.
• ✓Ophthalmologic documentation should confirm retinopathy is present and that macular edema is absent.
• ✓The provider should be queried to specify whether the retinopathy is nonproliferative (mild, moderate, severe) or proliferative, as this determines appropriate treatment and follow-up intervals.

Commonly Confused Codes