Poisn by mixed bact vaccines w/o a pertuss, undet, sequela

This code indicates a long-term effect or complication resulting from an undetermined poisoning by a mixed bacterial vaccine that does not contain a pertussis component. The initial poisoning event is no longer acute, and the patient is experiencing residual symptoms or conditions directly attributable to that past exposure.

Apply this code when documenting a sequela of an undetermined poisoning by a non-pertussis mixed bacterial vaccine. This is appropriate for follow-up encounters where the acute phase of the poisoning has resolved, but the patient continues to manifest related health issues.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Ensure documentation clearly links the current condition to the past vaccine poisoning.
• Do not use for acute poisoning; this code is exclusively for sequelae.