ICD-9 Diagnosis Code 050.9

Smallpox NOS

Diagnosis Code 050.9

ICD-9: 050.9
Short Description: Smallpox NOS
Long Description: Smallpox, unspecified
This is the 2014 version of the ICD-9-CM diagnosis code 050.9

Code Classification
  • Infectious and parasitic diseases
    • Viral diseases accompanied by exanthem (050-059)
      • 050 Smallpox

Information for Medical Professionals

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Index of Diseases and Injuries
References found for the code 050.9 in the Index of Diseases and Injuries:

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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