E10.21

✓ Billable

Type 1 diabetes mellitus with diabetic nephropathy

Endocrine, nutritional and metabolic diseases (E00-E89)

Also Known As

Type 1 diabetes mellitus with intercapillary glomerulosclerosisType 1 diabetes mellitus with intracapillary glomerulonephrosisType 1 diabetes mellitus with Kimmelstiel-Wilson disease

✅ No additional coding notes for E10.21

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Code Information

CodeE10.21

BillableYes

ParentE10.2

CategoryEndocrine, nutritional and metabolic diseases (E00-E89)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)