E08.321Header code — not billable

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

Short description: Diab d/t undrl cond w mild nonprlf diab rtnop w mclr edema

Chapter
4. Endocrine, nutritional and metabolic diseases
Category
E08
Effective date
October 1, 2026

Related codes in category E08

E08Diabetes mellitus due to underlying conditionE08.0Diabetes due to underlying condition w hyperosmolarityE08.00Diab d/t undrl cond w hyprosm w/o nonket hyprgly-hypros comaYesE08.01Diabetes due to underlying condition w hyprosm w comaYesE08.1Diabetes mellitus due to underlying condition w ketoacidosisE08.10Diabetes due to underlying condition w ketoacidosis w/o comaYesE08.11Diabetes due to underlying condition w ketoacidosis w comaYesE08.2Diabetes due to underlying condition w kidney complicationsE08.21Diabetes due to underlying condition w diabetic nephropathyYesE08.22Diabetes due to undrl cond w diabetic chronic kidney diseaseYesE08.29Diabetes due to undrl condition w oth diabetic kidney compYesE08.3Diabetes due to underlying condition w ophthalmic comp

Frequently asked questions

What is ICD-10 code E08.321?

E08.321 is an ICD-10-CM diagnosis code for Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy with macular edema.

Is E08.321 a billable code?

No. E08.321 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is E08.321 in?

E08.321 falls under Chapter 4: Endocrine, nutritional and metabolic diseases.

When did E08.321 become effective?

E08.321 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to E08.321?

E08.321 belongs to category E08, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.