Adverse effect of local anesthetics, sequela

This code signifies a lasting, negative consequence resulting from a past adverse reaction to a local anesthetic. It indicates that the patient is experiencing a chronic or residual problem directly attributable to the original drug effect, rather than an acute event.

Apply this code when documenting a patient presenting with a long-term complication, such as persistent neuropathy, chronic pain, or organ damage, that has been definitively linked to an adverse effect of a local anesthetic administered in the past. This is for conditions that have become permanent or are ongoing after the acute phase has resolved.

• Always sequence this code after the code for the specific sequela (e.g., G57.0 for sciatic nerve lesion).
• Ensure documentation clearly links the current condition to a past adverse effect of a local anesthetic.
• Do not use for acute adverse reactions; those require codes from the T41.3X1-T41.3X4 series.