E51.2
Billable codeWernicke's encephalopathy
The ICD-10 code for wernicke's encephalopathy is E51.2.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- E51.1Beriberinon-billable header
- E51.8Other manifestations of thiamine deficiency
- E51.9Thiamine deficiency, unspecified
- E51.2Wernicke's encephalopathy
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 2651Approximate match
Associated MS-DRGs
E51.2 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.