E10.40 — Type 1 diabetes mellitus with diabetic neuropathy, unspecified

BillableUnspecified

Is E10.40 billable?

Yes, but E10.40 is an unspecified code. E10.40 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, E10.40 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting E10.40 — the more specific alternatives are listed below.

More specific alternatives

E10.40 at a glance

Code	E10.40
Description	Type 1 diabetes mellitus with diabetic neuropathy, unspecified
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does E10.40 group to?

E10.40 sits in MDC Pre and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

008Simultaneous Pancreas, Islet Cell and Kidney Transplantsurgical

How is E10.40 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to E10.40. They show the wording a clinician may have documented, which often differs from the Tabular description.

Diabetes, diabetic › type 1 › with › neuropathy (mellitus) (sugar)

Excludes1 — never code together — inherited from Chapter 4

The conditions below can never be reported together with E10.40 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 E10.40 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.-)

How long has E10.40 existed?

E10.40 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

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