E10
Non-billableType 1 diabetes mellitus
E10 is the ICD-10-CM code for Type 1 diabetes mellitus. It is a non-billable category code — use a more specific child code such as E10.1 for billing.
- Status
- Header (non-billable)
- Chapter
- E00-E89
- Subcodes
- 9
- Edition
- FY2026
E00-E89 Endocrine, nutritional and metabolic diseases
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 — not coded here
- •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.-)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
Look up another ICD-10 code or condition