E10.21
Billable codeType 1 diabetes mellitus with diabetic nephropathy
The ICD-10 code for type 1 diabetes mellitus with diabetic nephropathy is E10.21.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Type 1 diabetes mellitus with intercapillary glomerulosclerosis
- Type 1 diabetes mellitus with intracapillary glomerulonephrosis
- Type 1 diabetes mellitus with Kimmelstiel-Wilson disease
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- E10.22Type 1 diabetes mellitus with diabetic chronic kidney disease
- E10.29Type 1 diabetes mellitus with other diabetic kidney complication
- E10.21Type 1 diabetes mellitus with diabetic nephropathy
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 25041Approximate match
- 25043Approximate match
Associated MS-DRGs
E10.21 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.