E10.21

Billable

Type 1 diabetes mellitus with diabetic nephropathy

E10.21 is the ICD-10-CM code for Type 1 diabetes mellitus with diabetic nephropathy. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
E00-E89
Parent
E10.2
Edition
FY2026

E00-E89 Endocrine, nutritional and metabolic diseases

Includes

  • Type 1 diabetes mellitus with intercapillary glomerulosclerosis
  • Type 1 diabetes mellitus with intracapillary glomerulonephrosis
  • Type 1 diabetes mellitus with Kimmelstiel-Wilson disease

Frequently asked questions

What is ICD-10 code E10.21?
E10.21 is the ICD-10-CM code for "Type 1 diabetes mellitus with diabetic nephropathy". It falls under E00-E89 Endocrine, nutritional and metabolic diseases.
Is E10.21 a billable code?
Yes — E10.21 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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