When is ICD-10 code E64 used?

Doctors, hospitals, and insurers may use ICD-10 code E64 when recording sequelae of malnutrition and other nutritional deficiencies in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code E64 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code E64: Sequelae of malnutrition and other nutritional deficiencies

Name: ICD-10 Code E64: Sequelae of malnutrition and other nutritional deficiencies
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:05:18.675Z

E64 is an ICD-10 diagnosis entry used to group records related to Sequelae of malnutrition and other nutritional deficiencies. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

When is it used?

May be used when a clinician documents sequelae of malnutrition and other nutritional deficiencies in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

4Endocrine, nutritional and metabolic diseases (E00-E89)

block

E50-E64Other nutritional deficiencies

currentE50-E64

Official coding notes

Applicable to

condition resulting from (sequela) of malnutrition and other nutritional deficiencies

Code first

condition resulting from (sequela) of malnutrition and other nutritional deficiencies

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

EndocrinologistGeneral Physician

Sibling codes

E50Vitamin A deficiency E51Thiamine deficiency E52Niacin deficiency [pellagra]billable E53Deficiency of other B group vitamins E54Ascorbic acid deficiencybillable E55Vitamin D deficiency E56Other vitamin deficiencies E58Dietary calcium deficiencybillable E59Dietary selenium deficiencybillable E60Dietary zinc deficiencybillable E61Deficiency of other nutrient elements E63Other nutritional deficiencies

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

E64

Replacement codes

E64.0 — Sequelae of protein-calorie malnutritionE64.1 — Sequelae of vitamin A deficiencyE64.2 — Sequelae of vitamin C deficiencyE64.3 — Sequelae of ricketsE64.8 — Sequelae of other nutritional deficienciesE64.9 — Sequelae of unspecified nutritional deficiency

Common synonyms

Sequelae of malnutrition and other nutritional deficiencies

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.