E51.12 Wet beriberi

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Beriberi with cardiovascular manifestations
• Cardiovascular beriberi
• Shoshin disease

Applies from E51 Thiamine deficiency

Excludes1 (never code together)

• sequelae of thiamine deficiency (E64.8)

MS-DRG index

Defines the logic of DRG(s) 640-641 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 265.0 Beriberi (approximate)

Code annotations containing back-references to E51.12

Back-references to E51

• Code First: G63 Polyneuropathy in diseases classified elsewhere ("nutritional deficiency (E40-E64)")
• Type 1 Excludes: T45.2X6 Underdosing of vitamins ("vitamin deficiencies (E50-E56)")
• Type 1 Excludes: Z72.4 Inappropriate diet and eating habits ("malnutrition and other nutritional deficiencies (E40-E64)")

Diagnosis Index entries for E51.12

• Beriberi (dry) › heart (disease)
• Beriberi (dry) › wet
• Cardiomyopathy (familial) (idiopathic) › beriberi
• Cardiomyopathy (familial) (idiopathic) › due to › beriberi
• Cardiomyopathy (familial) (idiopathic) › nutritional › beriberi
• Deficiency, deficient › thiamin, thiaminic (chloride) › beriberi (dry) › wet
• Deficiency, deficient › vitamin (multiple) NOS › B (complex) NOS › with › beriberi (dry) › wet
• Deficiency, deficient › vitamin (multiple) NOS › B1 NOS › beriberi (dry) › wet
• Disease, diseased › heart (organic) › beriberi (wet)
• Myocardiopathy (congestive) (constrictive) (familial) (hypertrophic nonobstructive) (idiopathic) (infiltrative) (obstructive) (primary) (restrictive) (sporadic) › in (due to) › beriberi

Nearby codes

• E51 Thiamine deficiency
• E51.1 Beriberi
• E51.11 Dry beriberi
• E51.12 Wet beriberi (this code)
• E51.2 Wernicke's encephalopathy
• E51.8 Other manifestations of thiamine deficiency
• E51.9 Thiamine deficiency, unspecified