ICD-10-CM Tabular Index · Chapter 4 · FY 2026 E50–E64
Other nutritional deficiencies (E50-E64) ICD-10-CM
The E50–E64 section covers other nutritional deficiencies with 59 ICD-10-CM diagnosis codes, of which 50 are billable in fiscal year 2026. The section is organized into the 13 code ranges listed below.
✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
13
Code Ranges
59
Diagnosis Codes
50
Billable Codes
E50–E64
Code Range
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the E50–E64 Code Range
ICD-10 codes E50-E64 cover a range of nutritional deficiencies beyond common vitamin D and mineral disorders, including specific vitamin shortages like vitamin A, thiamine (B1), niacin, other B vitamins, and mineral deficits such as copper and selenium. These codes also address sequelae resulting from past nutritional problems.
This ICD-10 chapter includes detailed codes for conditions such as vitamin A deficiency with ocular symptoms like conjunctival xerosis and Bitot's spots, thiamine deficiency disorders including dry and wet beriberi and Wernicke's encephalopathy, and pellagra caused by niacin deficiency. It also covers less common deficiencies like pyridoxine (B6), riboflavin, and other B-group vitamins which can cause neurological issues and anemia. Mineral deficiencies such as copper, iron, magnesium, and zinc are included, which affect various body functions like cognitive development and immunity. Codes for dietary imbalances and unspecified nutritional deficiencies help capture unclear or combined nutrient issues. Additionally, sequelae codes (E64) document long-term effects following these deficiencies, aiding comprehensive patient care and accurate health records.
Questions About This Page
How many codes are in the E50-E64 range?
The E50-E64 range contains 59 ICD-10-CM diagnosis codes in FY 2026. 50 of them are billable, and the rest are category headers that organize the section.
What conditions does E50-E64 cover?
The range covers other nutritional deficiencies. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Niacin (-tryptophan) deficiency
Nicotinamide deficiency
Pellagra (alcoholic)
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Deficiency of vitamin C
Scurvy
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Keshan disease
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
code for adverse effect, if applicable, to identify drug T36T50
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
condition resulting from (sequela) of malnutrition and other nutritional deficiencies
This category is to be used to indicate conditions in categories E43E44E46E50E63
