Pyridoxine deficiency

This code represents a nutritional deficiency specifically involving pyridoxine, also known as vitamin B6. This deficiency can manifest with various neurological, dermatological, and hematological symptoms due to its role in numerous metabolic processes.

Use this code when documentation clearly indicates a diagnosis of pyridoxine deficiency, often confirmed by laboratory testing showing low vitamin B6 levels. This may be seen in patients with malabsorption, chronic alcoholism, or those on certain medications that interfere with B6 metabolism.

• Do not code this with D64.3 (pyridoxine-responsive sideroblastic anemia) as per Excludes1 note; instead, code D64.3 if that specific anemia is present.
• Look for documentation of dietary insufficiency, medication side effects, or underlying conditions contributing to the deficiency.
• Consider sequencing this code as a secondary diagnosis if the pyridoxine deficiency is a manifestation or complication of another primary condition.