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E63 ICD-10-CA category: Other nutritional deficiencies

E63 isn’t a code on its own. Choose one of the 4 codes beneath it, the one the documentation supports.

Official description

E63

Other nutritional deficiencies

ICD-10-CA · Canada

Codes in E63

E63 isn’t a code on its own. Open the code that matches what the note documents.

E63.0Essential fatty acid [EFA] deficiencyE63.1Imbalance of constituents of food intakeE63.8Other specified nutritional deficienciesE63.9Nutritional deficiency, unspecified

Notes for E63

As CIHI prints them, with any note E63 takes from the headings above it.

Excludes

Conditions classified elsewhere.

  • Dehydration (E86)failure to thrive (in):• NOS (R62.8)• adult (R64)• child (R62.8)feeding problems in newborn (P92.-)sequelae of malnutrition and other nutritional deficiencies (E64.-)
  • Nutritional anaemias (D50-D53)From E50-E64 Other nutritional deficiencies
  • 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 E63 sits

  1. 1ChapterChapter 4: Endocrine, nutritional and metabolic diseases (E00-E90)
  2. 2Block E50-E64Other nutritional deficiencies
  3. 3Category E63Other nutritional deficiencies

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 E63 in the CIHI source

Frequently asked questions

Is E63 a valid ICD-10-CA code?

No. E63 (Other nutritional deficiencies) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 4 codes; record the one the documentation supports.

Where is E63 in ICD-10-CA?

E63 sits under E50-E64 Other nutritional deficiencies, within Chapter 4: Endocrine, nutritional and metabolic diseases (E00-E90).

What coding notes apply to E63?

ICD-10-CA lists Excludes, Note notes for E63, 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 E63

E50Vitamin A deficiencyE51Thiamine deficiencyE52Niacin deficiency [pellagra]E53Deficiency of other B group vitaminsE54Ascorbic acid deficiencyE55Vitamin D deficiencyE56Other vitamin deficienciesE58Dietary calcium deficiencyE59Dietary selenium deficiencyE60Dietary zinc deficiencyE61Deficiency of other nutrient elementsE64Sequelae of malnutrition and other nutritional deficiencies