Adverse effect of mixed bact vaccines w/o a pertuss, sequela

This code signifies a long-term or residual health problem resulting from an adverse reaction to a bacterial vaccine that does not contain a pertussis component. These sequelae are persistent conditions that manifest after the acute adverse effect of the vaccine has resolved. Examples include chronic pain, neurological deficits, or organ damage directly attributable to the vaccine.

Apply this code when documenting a patient presenting with a chronic condition or permanent impairment that is a direct consequence of an adverse reaction to a mixed bacterial vaccine (excluding those with a pertussis component) that occurred in the past. This code is appropriate for follow-up visits addressing these lasting effects, not the initial acute reaction.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., chronic headache, neuropathy).
• Ensure thorough documentation explicitly links the current condition to a past adverse vaccine event.
• Do not use this code for acute adverse reactions; instead, use the appropriate acute adverse effect code.