E13 ICD-10-CA category: Other specified diabetes mellitus

E13 isn’t a code on its own. Choose one of the 29 codes beneath it, the one the documentation supports.

Official description

E13

Other specified diabetes mellitus

ICD-10-CA · Canada

Codes in E13

E13 isn’t a code on its own. Open the group that matches what the note documents.

Notes for E13

As CIHI prints them, with any note E13 takes from the headings above it.

Includes

Diabetes mellitus due to genetic defects (in) (of):• beta-cell function• insulin actionMaturity onset diabetes of the young [MODY]Steroid induced diabetes mellitus

Use additional code

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

Use additional external cause code (Chapter XX) to identify drug, if drug induced.

Excludes

Conditions classified elsewhere.

Diabetes mellitus (in):• NOS (E14.-)• neonatal (P70.2)• pregnancy (gestational), childbirth and the puerperium (O24.-)• renal glycosuria (E74.8)• type 1 (E10.-)• type 2 (E11.-)impaired carbohydrate tolerance (pre-diabetes) (R73.0)non-insulin dependent diabetes mellitus of the young (NIDDMY) (E11.-)postprocedural hypoinsulinaemia of the non-diabetic (E89.1)
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 E13 sits

1ChapterChapter 4: Endocrine, nutritional and metabolic diseases (E00-E90)
2Block E10-E14Diabetes mellitus
3Category E13Other specified diabetes mellitus

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 E13 in the CIHI source

Frequently asked questions

Is E13 a valid ICD-10-CA code?

No. E13 (Other specified diabetes mellitus) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 29 codes; record the one the documentation supports.

Where is E13 in ICD-10-CA?

E13 sits under E10-E14 Diabetes mellitus, within Chapter 4: Endocrine, nutritional and metabolic diseases (E00-E90).

What coding notes apply to E13?

ICD-10-CA lists Includes, Use additional code, Excludes, Note notes for E13, 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.

View E10-E14

E10Type 1 diabetes mellitus E11Type 2 diabetes mellitus E14Unspecified diabetes mellitus