E10.321
⚠ Non-billable
Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema
ICD-10-CM · FY2026 · Endocrine, Nutritional and Metabolic Diseases
Code
E10.321
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Endocrine, Nutritional and Metabolic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code E10.321?
ICD-10-CM code E10.321 represents Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema. It is a non-billable header code requiring a more specific subcategory in the Endocrine, Nutritional and Metabolic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is E10.321 billable?
No. E10.321 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is E10.321 in?
E10.321 belongs to the Endocrine, Nutritional and Metabolic Diseases chapter (E00–E89) of ICD-10-CM.
Related codes in the E10 category
E10
Type 1 diabetes mellitus
Non-billable
E10.1
Type 1 diabetes mellitus with ketoacidosis
Non-billable
E10.2
Type 1 diabetes mellitus with kidney complications
Non-billable
E10.3
Type 1 diabetes mellitus with ophthalmic complications
Non-billable
E10.4
Type 1 diabetes mellitus with neurological complications
Non-billable
E10.5
Type 1 diabetes mellitus with circulatory complications
Non-billable
E10.6
Type 1 diabetes mellitus with other specified complications
Non-billable
E10.8
Type 1 diabetes mellitus with unspecified complications
Billable
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