ICD-10 Code E09.319 – Drug or chemical induced diabetes mellitus with unspecified diabetic retinopathy without macular edema (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E09.319 – Drug or chemical induced diabetes mellitus with unspecified diabetic retinopathy without macular edema
What it is
This code identifies diabetes caused by a drug or chemical, with diabetic retinopathy present but no macular edema specified. Use it when the record links the diabetes to an external substance and the eye finding is documented as unspecified retinopathy.
Clinical signs
Clinical features vary; refer to documentation. Typical retinopathy findings may include retinal microvascular changes noted on eye exam, but the record should specifically support diabetic retinopathy and state that macular edema is absent.
When to use this code
Use E09.319 when the provider documents drug- or chemical-induced diabetes and an eye specialist or other clinician records unspecified diabetic retinopathy without macular edema. It is appropriate when the causal agent is identified and the retinopathy is not further classified. If the note does not clearly connect the diabetes to a substance, check documentation.
Do not use for
Do not use this code for diabetes not caused by drugs or chemicals, or when diabetic retinopathy is absent. Do not use it if macular edema is documented; check documentation for a more specific retinopathy code.
Coding tip
Confirm both the external-cause link and the retinopathy detail before assigning E09.319.