Poisoning by chloramphenicol group

This code represents adverse effects resulting from the ingestion, injection, or application of chloramphenicol, a broad-spectrum antibiotic. This includes both accidental and intentional overdose, as well as adverse reactions to therapeutic doses. Manifestations can range from gastrointestinal upset to severe bone marrow suppression (aplastic anemia) or "gray baby syndrome" in neonates.

Use this code when documentation clearly indicates a patient's condition is directly attributable to poisoning or adverse reaction from chloramphenicol. This includes cases of drug toxicity, overdose, or idiosyncratic reactions. Supporting documentation should specify chloramphenicol as the causative agent and describe the resulting clinical signs and symptoms.

• Always code the specific manifestation of the poisoning first, followed by this code to identify the causative agent.
• Distinguish between poisoning (adverse effect, overdose) and allergic reaction; this code is for poisoning.
• Review documentation carefully to determine intent (accidental vs. intentional) and use appropriate E-codes for external causes.