Adverse effect of vitamins, sequela

This code signifies a long-term or residual condition resulting from a past adverse reaction to vitamin intake. It indicates that the initial acute adverse effect has resolved, but a lasting health problem persists as a direct consequence.

Apply this code when documenting a patient's current health issue that is a permanent or chronic sequela of a previous adverse effect from vitamins. This includes conditions like chronic liver damage from hypervitaminosis A, or persistent neuropathy following a severe adverse reaction to high-dose vitamin B6.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., chronic hepatitis).
• Ensure documentation clearly links the current condition to a past adverse vitamin effect.
• Do not use for acute adverse effects; those require the appropriate acute adverse effect code.