Niacin deficiency [pellagra] (E52)
ICD-10 code E52 is used to identify cases of niacin deficiency, commonly known as pellagra, a nutritional condition caused by insufficient niacin intake. This code specifically covers the clinical issues arising from a lack of niacin, which is essential for proper metabolism and nervous system function.
Niacin deficiency [pellagra] includes various presentations such as dementia and polyneuropathy linked to inadequate niacin levels. It relates to conditions often described as dementia due to niacin deficiency or pellagra neuropathy, and may be triggered by factors like poor diet, alcoholism (referred to as alcoholic pellagra), or drug-induced causes. This ICD-10 code helps distinguish these manifestations from other nutritional deficiencies. Medical coders looking for the ICD-10 code for pellagra or its synonyms will use E52 to ensure accurate classification of niacin deficiency-related disorders for patient records and treatment planning.
Instructional Notations
Inclusion Terms
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.
- sequelae of niacin deficiency E64.8
Clinical Terms
The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.
Pellagra
A disease due to deficiency of NIACIN, a B-complex vitamin, or its precursor TRYPTOPHAN. It is characterized by scaly DERMATITIS which is often associated with DIARRHEA and DEMENTIA (the three D's).
