Infections Due To Poxvirus – Definitions & ICD 11 Codes

Smallpox

Definition of Smallpox: A disease caused by an infection with variola virus. This disease is characterised by a maculopapular rash that progresses to vesicles (commonly on the face, arms, and legs), and fever. Transmission is by direct contact. Confirmation is by identification of the variola virus in a skin sample of the rash. 

In 1980 the 33rd World Health Assembly declared that smallpox had been eradicated. The classification is maintained for surveillance purposes.

ICD 11 Code For Smallpox

 1E70  Smallpox

Inclusions:

  • Variola

Monkeypox

Definition of Monkeypox: A disease caused by an infection with monkeypox virus. In the first phase, this disease is characterised by lymphadenopathy, fever, headache, or malaise; in the second phase, this disease is characterised by a rash that starts as maculopapules and progresses to vesicles, then pustules, followed by crusts (may occur on the face, palms of the hands, soles of the feet, body, and mucous membranes). Transmission is by direct contact with infected animals (including body fluids or lesions), direct contact with body fluid from infected individuals, or through fomites. Confirmation is by identification of monkeypox virus.

ICD 11 Code For Monkeypox

  1E71  Monkeypox

Cowpox

Definition of Cowpox: Cowpox is due to infection by an orthopoxvirus. Human disease is caused by cutaneous inoculation from an infected host. Cowpox is endemic in Europe amongst small rodents, particularly wood mice and wood voles. After a seven day incubation it causes a systemic febrile flu-like illness. Lesions are solitary or few, mainly affecting the face and hands. An initial erythematous papula or blister later forms a crusted eschar which heals slowly leaving a deep pock-like scar.

ICD 11 Code For Cowpox

  1E72  Cowpox

Vaccinia

Definition of Vaccinia: A poxvirus which was formerly used to protect against smallpox. Its use as a vaccine can be complicated by a generalised rash secondary to viraemia, accidental infection of other sites or other individuals, progressive infection at the site of vaccination or, rarely, encephalomyelitis and myopericarditis.

ICD 11 Code For Vaccinia

  1E73  Vaccinia

Buffalopox

Definition of Buffalopox: Buffalopox is caused by an orthopox virus related to vaccinia virus. It is acquired in humans by direct inoculation from infected water buffalo. It is generally a mild illness similar to cowpox with just a few lesions on the hands and arms. It leaves minor pock-like scars.

ICD 11 Code For Buffalopox

  1E74  Buffalopox

Orf

Definition of Orf: Orf is a virus infection of the skin contracted from sheep and goats. Orf is caused by a parapox virus which infects mainly young lambs and goats. Human lesions are caused by direct inoculation of infected material. Orf is not uncommon among sheep farmers, shearers, freezing workers, vets and farmers’ wives or their children who bottle-feed lambs. They occur most commonly on the fingers, hands or forearms but can appear on the face.

ICD 11 Code For Orf

  1E75  Orf

Molluscum contagiosum

Definition of Molluscum contagiosum: A disease of the skin and mucous membranes, caused by an infection with molluscum contagiosum virus. This disease is characterised by papular skin eruptions, commonly 2-3 millimetres in diameter. Transmission is by direct contact.

ICD 11 Code For Molluscum contagiosum

  1E76  Molluscum contagiosum

Exclusions:

  • Viral warts (1E80)

Other specified infections due to poxvirus

ICD 11 Code For Other specified infections due to poxvirus

  1E7Y  Other specified infections due to poxvirus

Infections due to poxvirus unspecified

ICD 11 Code For Infections due to poxvirus unspecified

  1E7Z  Infections due to poxvirus unspecified

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