E50-E64: Other nutritional deficiencies
E51: Thiamine deficiency
Thiamine deficiency, also known as vitamin B1 deficiency, is a group of conditions caused by inadequate intake or absorption of thiamine in the diet. Thiamine helps the body convert food into energy, which is vital to the proper functioning of the brain, heart and nervous system. Common symptoms include fatigue, irritability, memory problems, confusion, muscle weakness, and changes in heart rate. If left untreated, severe thiamine deficiency can eventually lead to serious complications like beriberi or Wernicke-Korsakoff syndrome, conditions that can affect the heart, nerves, and brain. This deficiency can occur due to a poor diet, certain health conditions that interfere with absorption, or excessive alcohol consumption which inhibits thiamine absorption or increases its excretion.
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.