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E10.4 ICD-10-CA subcategory: Type 1 diabetes mellitus with neurological complications

E10.4 isn’t a code on its own. Choose one of the 3 codes beneath it, the one the documentation supports.

Official description

E10.4

Type 1 diabetes mellitus with neurological complications

ICD-10-CA · Canada · Also written E104

Codes in E10.4

E10.4 isn’t a code on its own. Open the code that matches what the note documents.

E10.40Type 1 diabetes mellitus with mononeuropathyE10.41Type 1 diabetes mellitus with polyneuropathyE10.42Type 1 diabetes mellitus with autonomic neuropathy

Notes for E10.4

As CIHI prints them, with any note E10.4 takes from the headings above it.

Includes

Use additional code

Add a code for this detail when the note documents it.

  • Use additional code to identify any:• type 1 diabetes mellitus with poor control, so described (E10.64)

Excludes

Conditions classified elsewhere.

  • Diabetes mellitus (in):• NOS (E14.-)• neonatal (P70.2)• other specified (E13.-)• pregnancy (gestational), childbirth and the puerperium (O24.-)• renal glycosuria (E74.8)• type 2 (E11.-)due to genetic defect (in) (of) beta-cell function, insulin action (E13.-)impaired carbohydrate tolerance (pre-diabetes) (R73.0)maturity onset diabetes of the young [MODY] (E13.-)non-insulin dependent diabetes mellitus of the young [NIDDMY] (E11.-)post-procedural hypoinsulinaemia of the non-diabetic (E89.1)From E10 Type 1 diabetes mellitus
  • Metabolic syndrome (dysmetabolic syndrome) (syndrome X) (insulin resistance syndrome) (E88.80)From E10-E14 Diabetes mellitus
  • Complications of pregnancy, childbirth and the puerperium (O00-O99)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)transitory endocrine and metabolic disorders specific to fetus and newborn (P70-P74)From Chapter 4: Endocrine, nutritional and metabolic diseases (E00-E90)

Note

  • All neoplasms, whether functionally active or not, are classified in Chapter II. Appropriate codes in this chapter (i.e. E05.8)(E07.0) (E16-E31)(E34.-) may be used, if desired, as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.From Chapter 4: Endocrine, nutritional and metabolic diseases (E00-E90)

Where E10.4 sits

  1. 1ChapterChapter 4: Endocrine, nutritional and metabolic diseases (E00-E90)
  2. 2Block E10-E14Diabetes mellitus
  3. 3Category E10Type 1 diabetes mellitus
  4. 4Subcategory E10.4Type 1 diabetes mellitus with neurological complications

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See E10.4 in the CIHI source

Frequently asked questions

Is E10.4 a valid ICD-10-CA code?

No. E10.4 (Type 1 diabetes mellitus with neurological complications) is a subcategory heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 3 codes; record the one the documentation supports.

Where is E10.4 in ICD-10-CA?

E10.4 sits under E10 Type 1 diabetes mellitus, within E10-E14 Diabetes mellitus, within Chapter 4: Endocrine, nutritional and metabolic diseases (E00-E90).

What coding notes apply to E10.4?

ICD-10-CA lists Use additional code, Includes, Excludes, Note notes for E10.4, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside E10.4

E10.0Type 1 diabetes mellitus with comaE10.1Type 1 diabetes mellitus with acidosisE10.2Type 1 diabetes mellitus with kidney complicationsE10.3Type 1 diabetes mellitus with ophthalmic complicationsE10.5Type 1 diabetes mellitus with circulatory complicationsE10.6Type 1 diabetes mellitus with other specified complicationsE10.7Type 1 diabetes mellitus with multiple complicationsE10.9Type 1 diabetes mellitus without (mention of) complication