ICDcodes.org
FY2027

E10.A — Type 1 diabetes mellitus, presymptomatic

Not billable

Is E10.A billable?

No — E10.A is a non-billable header code. E10.A groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath E10.A.

E10.A at a glance

CodeE10.A
DescriptionType 1 diabetes mellitus, presymptomatic
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

How is E10.A listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to E10.A. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Diabetes, diabetic › type 1 › early-stage (mellitus) (sugar)

Inclusion terms

Alternative wording in documentation that is classified to E10.A.

  • Early-stage type 1 diabetes mellitus

Excludes1 — never code together — inherited from Chapter 4

The conditions below can never be reported together with E10.A on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Excludes1 — never code together — inherited from E10

The conditions below can never be reported together with E10.A on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • 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.-)

What codes fall under E10.A? (3)

How long has E10.A existed?

E10.A first appears in FY2025.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which conditions are coded to E10.A?

What other codes are in the E10 family? (8)