Back to ICD-10 library
ICD-10-CM · FY 2026 APRIL UPDATE

E10

Type 1 diabetes mellitus

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
E10.1Type 1 diabetes mellitus with ketoacidosisCategory
E10.10Type 1 diabetes mellitus with ketoacidosis without comaBillable
E10.11Type 1 diabetes mellitus with ketoacidosis with comaBillable
E10.2Type 1 diabetes mellitus with kidney complicationsCategory
E10.21Type 1 diabetes mellitus with diabetic nephropathyBillable
E10.22Type 1 diabetes mellitus with diabetic chronic kidney diseaseBillable
E10.29Type 1 diabetes mellitus with other diabetic kidney complicationBillable
E10.3Type 1 diabetes mellitus with ophthalmic complicationsCategory
E10.31Type 1 diabetes mellitus with unspecified diabetic retinopathyCategory
E10.311Type 1 diabetes mellitus with unspecified diabetic retinopathy with macular edemaBillable
E10.319Type 1 diabetes mellitus with unspecified diabetic retinopathy without macular edemaBillable
E10.32Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathyCategory
E10.321Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edemaCategory
E10.3211Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, right eyeBillable
E10.3212Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, left eyeBillable
E10.3213Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, bilateralBillable
E10.3219Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, unspecified eyeBillable
E10.329Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edemaCategory
E10.3291Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, right eyeBillable
E10.3292Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, left eyeBillable
E10.3293Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, bilateralBillable
E10.3299Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, unspecified eyeBillable
E10.33Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathyCategory
E10.331Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edemaCategory
E10.3311Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, right eyeBillable
E10.3312Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, left eyeBillable
E10.3313Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, bilateralBillable
E10.3319Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, unspecified eyeBillable
E10.339Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edemaCategory
E10.3391Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema, right eyeBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.