Underdosing of mixed bacterial vaccines w/o a pertuss, subs

This code indicates that a patient has experienced an underdosing of a bacterial vaccine that does not contain a pertussis component. This typically means the patient received less than the prescribed or recommended dose, or missed a scheduled dose in a multi-dose series, and is now presenting for follow-up care related to this underdosing.

Use this code when documenting a subsequent encounter for a patient who previously received an insufficient amount of a non-pertussis bacterial vaccine. This could include situations where the patient is returning for a booster dose after an incomplete primary series, or presenting with concerns related to inadequate vaccination due to the underdosing.

• Ensure the documentation clearly specifies a "subsequent encounter" for the underdosing event.
• Verify that the vaccine in question is a bacterial vaccine and explicitly excludes a pertussis component.
• Consider co-reporting with codes for any adverse effects or complications directly resulting from the underdosing, if applicable.