ICD-10 Code E51.11 – Dry beriberi (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E51.11 – Dry beriberi
What it is
Dry beriberi is a thiamine deficiency disorder that mainly affects the nervous system. It is used when documentation identifies the dry, neurologic form of beriberi rather than the wet, cardiac form.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include peripheral neuropathy, weakness, numbness, and difficulty walking, with possible symmetric involvement of the legs.
When to use this code
Use E51.11 when the provider documents dry beriberi, thiamine-deficiency neuropathy, or neurologic beriberi. Code it for confirmed deficiency-related neurologic disease, not for nonspecific weakness or neuropathy without a stated thiamine deficiency.
Do not use for
Do not use this code for wet beriberi, generalized malnutrition alone, or neuropathy of another known cause. If the record does not clearly link symptoms to thiamine deficiency, check documentation.
Coding tip
Look for explicit provider wording tying neurologic findings to thiamine deficiency before assigning E51.11.