ICD-10 Code E55.9 - Vitamin D deficiency, unspecified

ICD-10-CM Diagnosis Code E55.9

Diagnosis Code: E55.9 (Raw: E559)

Description: Vitamin D deficiency, unspecified

Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)

Fiscal Year: 2026

CMS Section 111 Status: Valid for reporting.

Overview & Clinical Details

ICD-10-CM code E55.9 is designated for Vitamin D deficiency, unspecified. In medical documentation and insurance billing, this code is utilized to specify medical diagnosis for patient records, reimbursement workflows, and compliance under CMS Section 111 mandatory insurer reporting guidelines.