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Diagnosis Code

E51.9 THIAMINE DEFICIENCY, UNSPECIFIED


Code Information

Diagnosis Code: E51.9

Short Description: Thiamine deficiency, unspecified

Long Description: Thiamine deficiency, unspecified

The code E51.9 is VALID for claim submission

Code Classification:

  • Endocrine, nutritional and metabolic diseases (E00–E89)
    • Other nutritional deficiencies (E50-E64)
      • Thiamine deficiency (E51)
        • E51.9 Thiamine deficiency, unspecified

Code Version: 2022 ICD-10-CM


Synonyms

  • Inadequate intake of thiamine
  • Niacin deficiency
  • Thiamine and niacin deficiency
  • Thiamine deficiency

Diagnostic Related Group(s)

The code E51.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Miscellaneous Disorders Of Nutrition, Metabolism, Fluids And Electrolytes With Mcc (640)
  • Miscellaneous Disorders Of Nutrition, Metabolism, Fluids And Electrolytes Without Mcc (641)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
E51.9 Right Arrow 265.1 Thiamine defic NEC/NOS

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
E51 Thiamine deficiency
E51.1 Beriberi
E51.11 Dry beriberi
E51.12 Wet beriberi
E51.2 Wernicke's encephalopathy
E51.8 Other manifestations of thiamine deficiency

This page was last updated on: 10/1/2023

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