E11.3491 Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy without…

ICD-10-CM · CMS code reference

E11.3491 codes type 2 diabetes with severe nonproliferative diabetic retinopathy, with no macular edema, in the right eye only. If both eyes are affected, use E11.3493; if it is the left eye, use E11.3492.

Official ICD-10-CM description: Type 2 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema, right eye

What to know

If macular edema is documented, use E11.3411 instead.

Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

Includes

diabetes (mellitus) due to insulin secretory defect
diabetes NOS
insulin resistant diabetes (mellitus)

Excludes1

Not coded together with this code. The exception is when the two conditions are unrelated to each other.

diabetes mellitus due to underlying condition (E08.-)
drug or chemical induced diabetes mellitus (E09.-)
gestational diabetes (O24.4-)
neonatal diabetes mellitus (P70.2)
postpancreatectomy diabetes mellitus (E13.-)
postprocedural diabetes mellitus (E13.-)
secondary diabetes mellitus NEC (E13.-)
type 1 diabetes mellitus (E10.-)

Use additional code

Add a second code for the following, when documented.

code to identify control using:
injectable non-insulin antidiabetic drugs (Z79.85)
insulin (Z79.4)
oral antidiabetic drugs (Z79.84)
oral hypoglycemic drugs (Z79.84)

Related codes

Common questions

Is E11.3491 a billable code?

Yes. E11.3491 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.