MCMedicalCodingSoftware
E52

E52: Niacin deficiency [pellagra]

Billable / specific codeICD-10-CM

E52 is a billable, specific ICD-10-CM code for niacin deficiency [pellagra]. It is valid for submission on a claim.

Check E52 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • sequelae of niacin deficiency (E64.8)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Niacin (-tryptophan) deficiency
  • Nicotinamide deficiency
  • Pellagra (alcoholic)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

E52 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52996Billing and Coding: Routine Foot Care
  • A56232Billing and Coding: Foot Care
  • A56680Billing and Coding: Routine Foot Care
  • A57188Billing and Coding: Routine Foot Care

Alphabetic index entries that lead here

  • Niacin deficiency(amide)
  • Nicotinic acid deficiency
  • Pellagra(alcoholic)
  • Alcohol, alcoholic, alcohol-induced›pellagra
  • Avitaminosis›nicotinic acid
  • Cheilosis›with pellagra
  • Deficiency, deficient›niacin(amide) (-tryptophan)
  • Deficiency, deficient›nicotinamide
  • Deficiency, deficient›nicotinic acid
  • Dermatitis›pellagrous
  • Encephalopathy›pellagrous
  • Erythema, erythematous›endemic

Code history

Unchanged in every release from FY2024 to FY2027.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.