Surface (topical) and infiltration anesthetics

This code signifies an adverse reaction or poisoning specifically due to the administration of local anesthetics, whether applied topically to the skin or mucous membranes, or injected to infiltrate tissues. It describes systemic effects or localized complications arising from the anesthetic agent itself, rather than from the procedure for which it was used.

Use this code when documentation clearly indicates a patient experienced an adverse effect, toxicity, or poisoning from a local anesthetic. This includes scenarios like allergic reactions, systemic toxicity from overdose or rapid absorption, or localized complications such as nerve damage or tissue necrosis directly attributable to the anesthetic agent. Documentation should specify the local anesthetic as the causative agent.

• Always identify the specific manifestation of the adverse effect (e.g., rash, anaphylaxis, cardiac arrhythmia) with an additional code.
• Distinguish between adverse effects of the drug itself and complications of the procedure (e.g., hematoma from injection).
• Consider an E-code (E879.2 for accidental poisoning by local anesthetics) if the intent was accidental overdose or improper administration.