E10
⚠ Non-billable (Header)Type 1 diabetes mellitus
Endocrine, nutritional and metabolic diseases (E00-E89)
⚠️ This is a category header code — not billable. Use a more specific child code below.
✅ Includes
- • brittle diabetes (mellitus)
- • diabetes (mellitus) due to autoimmune process
- • diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction
- • idiopathic diabetes (mellitus)
- • juvenile onset diabetes (mellitus)
- • ketosis-prone diabetes (mellitus)
❌ Excludes1
directCannot be coded with E10
- • diabetes mellitus due to underlying condition (E08.-)
- • drug or chemical induced diabetes mellitus (E09.-)
- • gestational diabetes (O24.4-)
- • hyperglycemia NOS (R73.9)
- • neonatal diabetes mellitus (P70.2)
- • postpancreatectomy diabetes mellitus (E13.-)
- • postprocedural diabetes mellitus (E13.-)
- • secondary diabetes mellitus NEC (E13.-)
- • type 2 diabetes mellitus (E11.-)
Child Codes (9)
E10.1Type 1 diabetes mellitus with ketoacidosisE10.2Type 1 diabetes mellitus with kidney complicationsE10.3Type 1 diabetes mellitus with ophthalmic complicationsE10.4Type 1 diabetes mellitus with neurological complicationsE10.5Type 1 diabetes mellitus with circulatory complicationsE10.6Type 1 diabetes mellitus with other specified complicationsE10.8Type 1 diabetes mellitus with unspecified complicationsE10.9Type 1 diabetes mellitus without complicationsE10.AType 1 diabetes mellitus, presymptomatic
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CodeE10
BillableNo — Header code
CategoryEndocrine, nutritional and metabolic diseases (E00-E89)
Excludes19 rule(s)
Excludes20 note(s)
Child codes9
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)