E10
Header — not billableType 1 diabetes mellitus
The ICD-10 code for type 1 diabetes mellitus is E10.
E10 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 9 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- 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.-)
Includes
Terms listed here further define or give examples of the conditions grouped under this code — they describe what the code covers, not a separate diagnosis.
- 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)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under E10
- E10.1Type 1 diabetes mellitus with ketoacidosisnon-billable header
- E10.2Type 1 diabetes mellitus with kidney complicationsnon-billable header
- E10.3Type 1 diabetes mellitus with ophthalmic complicationsnon-billable header
- E10.4Type 1 diabetes mellitus with neurological complicationsnon-billable header
- E10.5Type 1 diabetes mellitus with circulatory complicationsnon-billable header
- E10.6Type 1 diabetes mellitus with other specified complicationsnon-billable header
- E10.8Type 1 diabetes mellitus with unspecified complications
- E10.9Type 1 diabetes mellitus without complications
- E10.AType 1 diabetes mellitus, presymptomaticnon-billable header