E51.9
BillableThiamine deficiency, unspecified
Thiamine deficiency, unspecified
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Related Codes(3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(52)
SNOMED CT
- Thiamine and niacin deficiency267412000
- Aneurin deficiency399357009
- Thiamin deficiency399357009
- Thiamine deficiency399357009
- Vitamin B1 deficiency399357009
- Niacin deficiency418279001
- Nicotinamide deficiency418279001
- Nicotinic acid deficiency418279001
- Vitamin B3 deficiency418279001
- Vitamin PP deficiency418279001
- Inadequate intake of thiamine880107009
- Inadequate thiamin intake880107009
UMLS
- Aneurin deficiencyC0039841
- DEFIC THIAMINEC0039841
- Deficiencies, ThiamineC0039841
- Deficiency, ThiamineC0039841
- THIAMINE DEFICC0039841
- Thiamin deficiencyC0039841
- Thiamine DeficienciesC0039841
- Thiamine DeficiencyC0039841
- Thiamine deficiencyC0039841
- Thiamine deficiency (disorder)C0039841
- Thiamine deficiency, unspecifiedC0039841
- Vitamin B1 deficiencyC0039841
- deficiencies thiaminC0039841
- deficiency thiaminC0039841
- deficiency thiamineC0039841
- deficiency vitamin b1C0039841
- thiamin deficiencyC0039841
- thiamine deficiencyC0039841
- vitamin b1 deficiencyC0039841
Clinical Terms
- THIAMINE DEFIC
- Nicotinamide deficiency
- Thiamine Deficiencies
- deficiencies thiamin
- thiamin deficiency
- Vitamin PP deficiency
- Aneurin deficiency
- vitamin b1 deficiency
- Thiamine deficiency (disorder)
- Thiamine and niacin deficiency
- DEFIC THIAMINE
- Nicotinic acid deficiency
- Vitamin B3 deficiency
- Deficiencies, Thiamine
- deficiency thiamin
- deficiency vitamin b1
- Inadequate intake of thiamine
- Inadequate thiamin intake
- Niacin deficiency
- deficiency thiamine
- Deficiency, Thiamine
Frequently Asked Questions
What is the ICD-10 code for thiamine deficiency, unspecified?
The ICD-10-CM code for thiamine deficiency, unspecified is E51.9. The full clinical description is "Thiamine deficiency, unspecified". E51.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code E51.9 mean?
ICD-10-CM code E51.9 represents “Thiamine deficiency, unspecified”. It is classified under Chapter 4: Endocrine, Nutritional and Metabolic Diseases and is a billable/specific code that can be used on a claim.
Is E51.9 a billable code?
Yes, E51.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is E51.9 in?
E51.9 is in Chapter 4: Endocrine, Nutritional and Metabolic Diseases (codes E00-E89).
What codes cannot be used with E51.9?
E51.9 has Excludes1 notes indicating codes that cannot be used together with it, including: transitory endocrine and metabolic disorders specific to newborn (P70-P74); sequelae of thiamine deficiency (E64.8).
What SNOMED CT codes does E51.9 map to?
E51.9 maps to 4 SNOMED CT concepts: 399357009, 880107009, 418279001, 267412000. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for E51.9?
E51.9 is linked to 1 UMLS Concept Unique Identifier: C0039841. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does E51.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like thiamine deficiency, unspecified affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of E51.9?
E51.9 maps to the ICD-11 code: 5B5A.Z (Vitamin B1 deficiency, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.