Poisoning by liver preparations and other antianemic agents

This code signifies an adverse reaction or overdose specifically due to medications used to treat anemia, such as liver extracts, vitamin B12, folic acid, or iron preparations. It indicates that the patient has experienced toxic effects from these substances, whether accidental or intentional.

Apply this code when documentation clearly states poisoning, overdose, or adverse effects from antianemic agents. This includes scenarios like accidental ingestion of iron supplements by a child, an adult intentionally overdosing on vitamin B12, or a patient experiencing toxicity from prescribed liver extract injections. Supporting documentation should detail the substance involved and the resulting clinical manifestations.

• Always sequence this code first if it represents the primary reason for the encounter, followed by codes for the specific manifestations of the poisoning.
• Distinguish between poisoning (adverse effect due to incorrect use or overdose) and adverse effect in therapeutic use (correctly administered drug causing an unexpected reaction).
• Ensure the documentation specifies an antianemic agent; do not use for poisoning by other medication classes.