Unspecified combined vaccine

This code signifies that a patient received a combined vaccine, but the specific components of that vaccine are not documented or are unknown. It indicates a prophylactic measure against multiple infectious diseases without further detail on the exact agents covered.

Use this code when immunization records indicate a combined vaccine was administered, but the medical documentation lacks specificity regarding the individual antigens included (e.g., "combined vaccine given" without specifying DTaP, MMR, etc.). It is appropriate when a more precise code for a specific combined vaccine cannot be assigned due to insufficient information.

• Avoid using this code if a more specific combined vaccine (e.g., DTaP, MMR) can be identified from the medical record.
• Query the provider for clarification if the type of combined vaccine is not documented.
• This code is for historical use with ICD-9-CM and is generally replaced by more specific Z codes in ICD-10-CM.