ICD-9 Diagnosis Code V04.1

Vaccin for smallpox

Diagnosis Code V04.1

ICD-9: V04.1
Short Description: Vaccin for smallpox
Long Description: Need for prophylactic vaccination and inoculation against smallpox
This is the 2014 version of the ICD-9-CM diagnosis code V04.1

Code Classification
  • Supplementary classification of factors influencing health status and contact with health services
    • Persons with potential health hazards related to communicable diseases (V01-V09)
      • V04 Need for prophylactic vaccination and inoculation against certain viral diseases

Information for Medical Professionals

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The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Index of Diseases and Injuries
References found for the code V04.1 in the Index of Diseases and Injuries:

    • Admission (encounter)
      • for
        • vaccination, prophylactic (against)
          • smallpox V04.1
    • Glucoglycinuria 270.7
    • Smallpox 050.9
      • vaccination
        • prophylactic (against) V04.1
    • Vaccination
      • prophylactic (against) V05.9
        • smallpox V04.1

Information for Patients


Smallpox is a disease caused by the Variola major virus. Some experts say that over the centuries it has killed more people than all other infectious diseases combined. Worldwide immunization stopped the spread of smallpox three decades ago. The last case was reported in 1977. Two research labs still keep small amounts of the virus. Experts fear bioterrorists could use the virus to spread disease.

Smallpox spreads very easily from person to person. Symptoms are flu-like. They include

  • High fever
  • Fatigue
  • Headache
  • Backache
  • A rash with flat red sores

There is no treatment. Fluids and medicines for pain or fever can help control symptoms. Most people recover, but some can die. Those who do recover may have severe scars.

The U.S. stopped routine smallpox vaccinations in 1972. Military and other high-risk groups continue to get the vaccine. The U.S. has increased its supply of the vaccine in recent years. The vaccine makes some people sick, so doctors save it for those at highest risk of disease.

NIH: National Institute of Allergy and Infectious Diseases

  • Smallpox
  • Smallpox Vaccine What You Need to Know (Centers for Disease Control and Prevention)

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