E52 – Niacin deficiency [pellagra]
ICD-10-CM 2027 diagnosis code · Other nutritional deficiencies
ICD-10-CM code
E52
- Code
E52(claims format:E52)- Description
- Niacin deficiency [pellagra]
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 4. Endocrine, nutritional and metabolic diseases (E00-E89)
- Block
- E50-E64 Other nutritional deficiencies
Notes for E52
Applicable to:
- Niacin (-tryptophan) deficiency
- Nicotinamide deficiency
- Pellagra (alcoholic)
Excludes1 (not coded here):
- sequelae of niacin deficiency (E64.8)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block E50-E64
Index terms for E52
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Niacin
- Pellagra
- Syndrome, pellagroid
- Glossitis, pellagrous
- Dementia, in, pellagra
- Gingivitis, pellagrous
- Dermatitis, pellagrous
- Cheilosis, with pellagra
- Nicotinic acid deficiency
- Encephalopathy, pellagrous
- Acid, deficiency, nicotinic
- Polyneuropathy, in, pellagra
- Avitaminosis, nicotinic acid
- Deficiency, deficient, niacin
- Pellagra, with, polyneuropathy
- Dementia, in, niacin deficiency
- Erythema, erythematous, endemic
- Avitaminosis, B, with, pellagra
- Acid, deficiency, amide nicotinic
- Deficiency, deficient, vitamin, PP
- Deficiency, deficient, nicotinamide
- Deficiency, deficient, nicotinic acid
- Deficiency, deficient, vitamin, nicotinic
- Alcohol, alcoholic, alcohol-induced, pellagra
- Deficiency, deficient, vitamin, B, with, pellagra
Frequently asked questions
What is ICD-10 code E52?
E52 is the ICD-10-CM code for niacin deficiency [pellagra], in the block E50-E64 (Other nutritional deficiencies).
Is E52 a billable code?
Yes. E52 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.