ICD-10-CM E56.1 is the diagnosis code for Deficiency of vitamin K. This code falls under the section "Other nutritional deficiencies" within Chapter 4 — Endocrine, nutritional and metabolic diseases (E00-E89). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as E56.1. They are mutually exclusive:
Understanding where E56.1 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, E56.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
E56.1 is the ICD-10-CM diagnosis code for "Deficiency of vitamin K". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of E56.1 is E56 ("Other vitamin deficiencies"). E56.1 provides a more specific classification within this category.
E56.1 is located in Section E50-E64 — "Other nutritional deficiencies" within Chapter 4 of the ICD-10-CM Tabular List.
Use E56.1 when the patients documented diagnosis matches "Deficiency of vitamin K" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Deficiency of vitamin K is E56.1.
Yes, E56.1 can be used as a primary diagnosis code since it is billable and specific.
E56.1 is in Chapter 4 of the ICD-10-CM Tabular List.
Type 1 Excludes for E56.1 include: deficiency of coagulation factor due to vitamin K deficiency (D68.4); vitamin K deficiency of newborn (P53).
Yes, E56.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.