2019 ICD-10-CM Diagnosis Code B03

Smallpox

    2016 2017 2018 2019 Billable/Specific Code
  • B03 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM B03 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of B03 - other international versions of ICD-10 B03 may differ.
Note
  • In 1980 the 33rd World Health Assembly declared that smallpox had been eradicated.
  • The classification is maintained for surveillance purposes.
The following code(s) above B03 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to B03:
  • A00-B99
    2019 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
Clinical Information
  • An acute, highly contagious, often fatal infectious disease caused by an orthopoxvirus characterized by a biphasic febrile course and distinctive progressive skin eruptions. Vaccination has succeeded in eradicating smallpox worldwide. (Dorland, 28th ed)
  • 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 house 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 and include high fever, fatigue and headache and backache, followed by a rash with flat red sores. The United States Stopped routine smallpox vaccinations in 1972. Military and other high-risk groups continue to get the vaccine. The United States 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.
ICD-10-CM B03 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 865 Viral illness with mcc
  • 866 Viral illness without mcc

Convert B03 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change

Diagnosis Index entries containing back-references to B03:
  • Alastrim B03
  • Smallpox B03
  • Variola B03 (major) (minor)
  • Varioloid B03

ICD-10-CM Codes Adjacent To B03
B02.3 Zoster ocular disease
B02.30 …… unspecified
B02.31 Zoster conjunctivitis
B02.32 Zoster iridocyclitis
B02.33 Zoster keratitis
B02.34 Zoster scleritis
B02.39 Other herpes zoster eye disease
B02.7 Disseminated zoster
B02.8 Zoster with other complications
B02.9 Zoster without complications
B03 Smallpox
B04 Monkeypox
B05 Measles
B05.0 Measles complicated by encephalitis
B05.1 Measles complicated by meningitis
B05.2 Measles complicated by pneumonia
B05.3 Measles complicated by otitis media
B05.4 Measles with intestinal complications
B05.8 Measles with other complications
B05.81 Measles keratitis and keratoconjunctivitis
B05.89 Other measles complications

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.