E08.321Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy with macular edema

E08.321 is the ICD-10-CM diagnosis code for diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy with macular edema. It belongs to category E08 (diabetes mellitus due to underlying condition), block E08-E13 (diabetes mellitus) and chapter 4 (endocrine, nutritional and metabolic diseases). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within E08.32 (diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy), E08.321 is specifically for diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy with macular edema. Related codes cover without macular edema (E08.329).

Codes in this range require a 7th character: 1 for right eye, 2 for left eye, 3 for bilateral and 9 for unspecified eye. Use placeholder "X" characters to fill any empty positions before the 7th character.

Code first the underlying condition, such as: congenital rubella (P35.0), Cushing's syndrome (E24.-), cystic fibrosis (E84.-), malignant neoplasm (C00-C96) and 2 more.

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

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (expanded into subcodes).