ICD-10 Code E10.321 - Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema

ICD-10-CM Diagnosis Code E10.321

Diagnosis Code: E10.321 (Raw: E10321)

Description: Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema

Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)

Fiscal Year: 2026

CMS Section 111 Status: Valid for reporting (Excluded from No-Fault liability reporting).

Overview & Clinical Details

ICD-10-CM code E10.321 is designated for Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema. In medical documentation and insurance billing, this code is utilized to specify medical diagnosis for patient records, reimbursement workflows, and compliance under CMS Section 111 mandatory insurer reporting guidelines.