ICD-10-CM Code For Other Vitamin Deficiencies: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group E56 includes vitamin deficiency states other than vitamins A, D, and K, such as deficiencies of vitamin B-complex vitamins and vitamin C, covering conditions like vitamin B12 deficiency and scurvy. These ICD-10-CM diagnosis codes are used to document clinical scenarios that capture laboratory-confirmed deficiencies, associated neurologic or hematologic manifestations, and treatment-related complexity. Accurate coding within the ICD-10-CM E56 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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ICD-10-CM E56: Other Vitamin Deficiencies Overview

The diagnoses in this group represent clinical conditions caused by inadequate levels of vitamins other than vitamin A, D, or K, affecting metabolic and hematologic functions. These deficiencies can impact multiple organ systems, commonly presenting with neurologic, hematologic, or mucocutaneous signs. Accurate coding matters for correct clinical documentation and reimbursement because it conveys the specific deficiency and related clinical complexity.

When to Use

Use a code from this group when there is a documented vitamin deficiency other than vitamins A, D, or K confirmed by clinical assessment or laboratory testing. Select the specific code that reflects the identified vitamin deficiency and any documented complications or manifestations.

ICD-10-CM Codes

4 rows

ICD-10-CM Code	Description
E56.0	Deficiency of vitamin E
E56.1	Deficiency of vitamin K
E56.8	Deficiency of other vitamins
E56.9	Vitamin deficiency, unspecified

DRG Codes

2 rows

DRG Code	Description
640	Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC
641	Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC

Typical Clinical Scenarios

An elderly patient presents to primary care with progressive muscle weakness, fatigue, and paresthesias over several months after restrictive dietary intake and limited sun exposure; laboratory testing reveals low serum vitamin D levels and signs of osteomalacia on radiographs, prompting assignment of a vitamin deficiency code to document the underlying nutritional cause. Typical codes: E56.0, E56.9
A young adult with a history of bariatric surgery presents to the emergency department with new-onset confusion, ataxia, and nystagmus; clinicians identify a deficiency-related neurologic syndrome due to malabsorption of water-soluble vitamins and initiate urgent evaluation and replacement, with a deficiency code used as a comorbidity contributing to the acute presentation. Typical codes: E56.1, E56.9
A patient with chronic alcoholism is seen in outpatient clinic for persistent glossitis, angular cheilosis, and chronic diarrhea; nutritional assessment shows multiple vitamin insufficiencies without a single identified vitamin predominating, and a nonspecific other vitamin deficiency code is assigned to reflect the documented nutritional deficiency affecting management and follow-up. Typical codes: E56.8, E56.9

Related Codes

E50-VITAMIN-A-DEFICIENCY

ICD-10-CM Code For Vitamin A Deficiency: Group Overview

E51-THIAMINE-DEFICIENCY

ICD-10-CM Code For Thiamine Deficiency: Group Overview

E52-NIACIN-DEFICIENCY-PELLAGRA

ICD-10-CM Code For Niacin Deficiency [Pellagra]: Group Overview

E53-DEFICIENCY-OF-OTHER-B-GROUP-VITAMINS

ICD-10-CM Code For Deficiency Of Other B Group Vitamins: Group Overview

E54-ASCORBIC-ACID-DEFICIENCY

ICD-10-CM Code For Ascorbic Acid Deficiency: Group Overview

E55-VITAMIN-D-DEFICIENCY

ICD-10-CM Code For Vitamin D Deficiency: Group Overview

E58-DIETARY-CALCIUM-DEFICIENCY

ICD-10-CM Code For Dietary Calcium Deficiency: Group Overview

E59-DIETARY-SELENIUM-DEFICIENCY

ICD-10-CM Code For Dietary Selenium Deficiency: Group Overview

E60-DIETARY-ZINC-DEFICIENCY

ICD-10-CM Code For Dietary Zinc Deficiency: Group Overview

E61-DEFICIENCY-OF-OTHER-NUTRIENT-ELEMENTS

ICD-10-CM Code For Deficiency Of Other Nutrient Elements: Group Overview

Showing 1–10 of 12

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

4 rows

ICD-10-CM Code	Description
E56.0	Deficiency of vitamin E
E56.1	Deficiency of vitamin K
E56.8	Deficiency of other vitamins
E56.9	Vitamin deficiency, unspecified

DRG Codes

2 rows

DRG Code	Description
640	Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC
641	Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC

Typical Clinical Scenarios

An elderly patient presents to primary care with progressive muscle weakness, fatigue, and paresthesias over several months after restrictive dietary intake and limited sun exposure; laboratory testing reveals low serum vitamin D levels and signs of osteomalacia on radiographs, prompting assignment of a vitamin deficiency code to document the underlying nutritional cause. Typical codes: E56.0, E56.9
A young adult with a history of bariatric surgery presents to the emergency department with new-onset confusion, ataxia, and nystagmus; clinicians identify a deficiency-related neurologic syndrome due to malabsorption of water-soluble vitamins and initiate urgent evaluation and replacement, with a deficiency code used as a comorbidity contributing to the acute presentation. Typical codes: E56.1, E56.9
A patient with chronic alcoholism is seen in outpatient clinic for persistent glossitis, angular cheilosis, and chronic diarrhea; nutritional assessment shows multiple vitamin insufficiencies without a single identified vitamin predominating, and a nonspecific other vitamin deficiency code is assigned to reflect the documented nutritional deficiency affecting management and follow-up. Typical codes: E56.8, E56.9

Related Codes

E50-VITAMIN-A-DEFICIENCY

ICD-10-CM Code For Vitamin A Deficiency: Group Overview

E51-THIAMINE-DEFICIENCY

ICD-10-CM Code For Thiamine Deficiency: Group Overview

E52-NIACIN-DEFICIENCY-PELLAGRA

ICD-10-CM Code For Niacin Deficiency [Pellagra]: Group Overview

E53-DEFICIENCY-OF-OTHER-B-GROUP-VITAMINS

ICD-10-CM Code For Deficiency Of Other B Group Vitamins: Group Overview

E54-ASCORBIC-ACID-DEFICIENCY

ICD-10-CM Code For Ascorbic Acid Deficiency: Group Overview

E55-VITAMIN-D-DEFICIENCY

ICD-10-CM Code For Vitamin D Deficiency: Group Overview

E58-DIETARY-CALCIUM-DEFICIENCY

ICD-10-CM Code For Dietary Calcium Deficiency: Group Overview

E59-DIETARY-SELENIUM-DEFICIENCY

ICD-10-CM Code For Dietary Selenium Deficiency: Group Overview

E60-DIETARY-ZINC-DEFICIENCY

ICD-10-CM Code For Dietary Zinc Deficiency: Group Overview

E61-DEFICIENCY-OF-OTHER-NUTRIENT-ELEMENTS

ICD-10-CM Code For Deficiency Of Other Nutrient Elements: Group Overview

Showing 1–10 of 12

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Other Vitamin Deficiencies: Group Overview

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ICD-10-CM E56: Other Vitamin Deficiencies Overview

ICD-10-CM Code For Other Vitamin Deficiencies: Group Overview

Sign up for ICD-10-CM Code For Other Vitamin Deficiencies: Group Overview policy alerts

ICD-10-CM E56: Other Vitamin Deficiencies Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which diagnoses are included in ICD-10-CM group E56?

How does accurate coding within `E56` affect reimbursement?

What clinical presentations are commonly associated with E56 vitamin deficiencies?

When should a coder select `E56.9` versus a specific E56 code?

Which DRGs are related to diagnoses in the E56 group?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which diagnoses are included in ICD-10-CM group E56?

How does accurate coding within `E56` affect reimbursement?

What clinical presentations are commonly associated with E56 vitamin deficiencies?

When should a coder select `E56.9` versus a specific E56 code?

Which DRGs are related to diagnoses in the E56 group?

References