E31.0 ICD-10-CA code: Autoimmune polyglandular failure

E31.0 is the ICD-10-CA code for “Autoimmune polyglandular failure” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

E31.0

Autoimmune polyglandular failure

ICD-10-CA · Canada · Also written E310

Index terms

Entries in CIHI’s alphabetical index that lead to E31.0. Searching the index by the condition the note names is how coders reach this code.

  • Polyglandular, deficiency
  • Syndrome, autoimmune polyglandular
  • Syndrome, polyglandular, autoimmune
  • Failure, failed, polyglandular, autoimmune
  • Atrophy, atrophic, pluriglandular, autoimmune
  • Schmidt's syndrome (polyglandular, autoimmune)
  • Syndrome, thyroid adrenocortical insufficiency
  • Deficiency, deficient, polyglandular, autoimmune
  • Syndrome, pluriglandular (compensatory), autoimmune
  • Insufficiency, insufficient, progressive pluriglandular

Notes for E31.0

As CIHI prints them, with any note E31.0 takes from the headings above it.

Includes

  • Schmidt's syndrome

Excludes

Conditions classified elsewhere.

  • Ataxia telangiectasia [Louis-Bar] (G11.3)dystrophia myotonica [Steinert] (G71.1)pseudohypoparathyroidism (E20.1)From E31 Polyglandular dysfunction
  • Galactorrhoea (N64.3)gynaecomastia (N62)From E20-E35 Disorders of other endocrine glands
  • 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 E31.0 sits

  1. 1ChapterChapter 4: Endocrine, nutritional and metabolic diseases (E00-E90)
  2. 2Block E20-E35Disorders of other endocrine glands
  3. 3Category E31Polyglandular dysfunction
  4. 4Valid code E31.0Autoimmune polyglandular failure

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.

Frequently asked questions

What does ICD-10-CA code E31.0 mean?

E31.0 is the ICD-10-CA code for “Autoimmune polyglandular failure” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is E31.0 in ICD-10-CA?

E31.0 sits under E31 Polyglandular dysfunction, within E20-E35 Disorders of other endocrine glands, within Chapter 4: Endocrine, nutritional and metabolic diseases (E00-E90).

What coding notes apply to E31.0?

ICD-10-CA lists Includes, Excludes, Note notes for E31.0, 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.