Poisoning by unsp systemic antibiotic, undetermined, subs

This code indicates a patient encounter for the adverse effects of an unspecified systemic antibiotic, where the intent of the poisoning (e.g., accidental, intentional self-harm, assault) cannot be determined. The patient is in the recovery phase of the poisoning, receiving follow-up care after the initial treatment.

Use this code for subsequent encounters when a patient is being treated for complications or sequelae of an antibiotic poisoning, and the specific antibiotic involved is unknown. This applies when the circumstances surrounding the poisoning are unclear or not documented as accidental, intentional, or assault.

• Always use a T-code from the poisoning section (T36-T65) as the primary diagnosis when the intent is undetermined.
• Ensure the "D" seventh character is used for subsequent encounters, indicating ongoing care after the initial treatment.
• Avoid using this code if the specific antibiotic is known; instead, use the more specific T36.x codes.