ICD-11 MMS Chapter 1: Certain infectious or parasitic diseases

This is the first chapter of the ICD-11 MMS: Certain infectious or parasitic diseases. It covers ICD codes 1A00 to 1H0Z. The entities listed here are from the most recent revision of the ICD-11 MMS: version 04/2019. The full chapter can be browsed freely on the ICD-11 Browser of the website of the World Health Organization.

ICD-11 MMS chapters
Chapter Range Title
1 1A00–1H0Z Certain infectious or parasitic diseases
2 2A00–2F9Z Neoplasms
3 3A00–3C0Z Diseases of the blood or blood-forming organs
4 4A00–4B4Z Diseases of the immune system
5 5A00–5D46 Endocrine, nutritional or metabolic diseases
6 6A00–6E8Z Mental, behavioural or neurodevelopmental disorders
7 7A00–7B2Z Sleep-wake disorders
8 8A00–8E7Z Diseases of the nervous system
9 9A00–9E1Z Diseases of the visual system
10 AA00–AC0Z Diseases of the ear or mastoid process
11 BA00–BE2Z Diseases of the circulatory system
12 CA00–CB7Z Diseases of the respiratory system
13 DA00–DE2Z Diseases of the digestive system
14 EA00–EM0Z Diseases of the skin
15 FA00–FC0Z Diseases of the musculoskeletal system or connective tissue
16 GA00–GC8Z Diseases of the genitourinary system
17 HA00–HA8Z Conditions related to sexual health
18 JA00–JB6Z Pregnancy, childbirth or the puerperium
19 KA00–KD5Z Certain conditions originating in the perinatal period
20 LA00–LD9Z Developmental anomalies
21 MA00–MH2Y Symptoms, signs or clinical findings, not elsewhere classified
22 NA00–NF2Z Injury, poisoning or certain other consequences of external causes
23 PA00–PL2Z External causes of morbidity or mortality
24 QA00–QF4Z Factors influencing health status or contact with health services
25 RA00–RA26 Codes for special purposes
26 SA00–SJ3Z Supplementary Chapter Traditional Medicine Conditions - Module I
V VA00–VC50 Supplementary section for functioning assessment
X X...–X... Extension Codes

Some of the entities are marked as gray nodes. These are categories with a different parent node, but they are also listed elsewhere due to overlap. Classes that end with Y or Z are residual nodes ('other specified' or 'unspecified' categories).

Gastroenteritis or colitis of infectious origin

Predominantly sexually transmitted infections
  • Syphilis
  • Gonococcal infection
    • 1A70 Gonococcal genitourinary infection
      • 1A70.0 Gonococcal infection of lower genitourinary tract without periurethral or accessory gland abscess
        • 1A70.00 Gonorrhoea of penis
        • 1A70.0Y Other specified gonococcal infection of lower genitourinary tract without periurethral or accessory gland abscess
        • 1A70.0Z Gonococcal infection of lower genitourinary tract without periurethral or accessory gland abscess, unspecified
      • 1A70.1 Gonococcal infection of lower genitourinary tract with periurethral or accessory gland abscess
      • 1A70.Y Gonococcal infection of other specified genitourinary organ
      • 1A70.Z Gonococcal genitourinary infection, unspecified
    • 1A71 Gonococcal pelviperitonitis
    • 1A72 Gonococcal infection of other sites
    • 1A73 Disseminated gonococcal infection
    • JB63.2 Gonorrhoea complicating pregnancy, childbirth or the puerperium (gray node)
    • 1A7Z Gonococcal infection, unspecified
  • Sexually transmissible infections due to chlamydia
    • 1A80 Chlamydial lymphogranuloma
    • 1A81 Non-ulcerative sexually transmitted chlamydial infection
      • 1A81.0 Chlamydial infection of lower genitourinary tract
      • 1A81.1 Chlamydial infection of internal reproductive organs
      • 1A81.Y Non-ulcerative sexually transmitted chlamydial infection of other specified site
      • 1A81.Z Non-ulcerative sexually transmitted chlamydial infection of unspecified site
    • 1A8Y Other specified sexually transmissible infections due to chlamydia
    • 1A8Z Sexually transmissible infections due to chlamydia, unspecified
  • 1A90 Chancroid
  • 1A91 Granuloma inguinale
  • 1A92 Trichomoniasis
  • 1A93 Sexually transmissible infestations
    • 1G04 Scabies (gray node)
      • 1G04.0 Classical scabies (gray node)
      • 1G04.1 Crusted scabies (gray node)
      • 1G04.Y Other and unspecified scabies (gray residual node)
  • 1A94 Anogenital herpes simplex infection
  • 1A95 Anogenital warts
  • Sexually transmissible viral hepatitis (gray node)
  • 1F00.01 Herpes simplex labialis (gray node)
  • 1F00.02 Herpes simplex gingivostomatitis (gray node)
  • 1F23.10 Vulvovaginal candidosis (gray node)
  • 1F23.11 Candida balanoposthitis (gray node)
  • Human immunodeficiency virus disease (gray node)
    • 1C60 Human immunodeficiency virus disease associated with tuberculosis (gray node)
      • 1C60.0 HIV disease clinical stage 1 associated with tuberculosis (gray node)
      • 1C60.1 HIV disease clinical stage 2 associated with tuberculosis (gray node)
      • 1C60.2 HIV disease clinical stage 3 associated with tuberculosis (gray node)
      • 1C60.3 HIV disease clinical stage 4 associated with tuberculosis (gray node)
        • 1C60.30 Kaposi sarcoma associated with human immunodeficiency virus disease associated with tuberculosis (gray node)
        • 6D85.3 Dementia due to human immunodeficiency virus (gray node)
        • 9B72.01 HIV retinitis (gray node)
        • 1C60.3Y Other specified HIV disease clinical stage 4 associated with tuberculosis (gray residual node)
        • 1C60.3Z HIV disease clinical stage 4 associated with tuberculosis, unspecified (gray residual node)
      • JB63.7 Human immunodeficiency disease complicating pregnancy, childbirth or the puerperium (gray node)
      • 1C60.Z Human immunodeficiency virus disease associated with tuberculosis, clinical stage unspecified (gray residual node)
    • 1C61 Human immunodeficiency virus disease associated with malaria (gray node)
      • 1C61.0 HIV disease clinical stage 1 associated with malaria (gray node)
      • 1C61.1 HIV disease clinical stage 2 associated with malaria (gray node)
        • DA01.01 Hairy leukoplakia (gray node)
      • 1C61.2 HIV disease clinical stage 3 associated with malaria (gray node)
      • 1C61.3 HIV disease clinical stage 4 associated with malaria (gray node)
        • 1C61.30 Kaposi sarcoma associated with human immunodeficiency virus disease associated with malaria (gray node)
        • 6D85.3 Dementia due to human immunodeficiency virus (gray node)
        • 9B72.01 HIV retinitis (gray node)
        • 1C61.3Y Other specified HIV disease clinical stage 4 associated with malaria (gray residual node)
        • 1C61.3Z HIV disease clinical stage 4 associated with malaria, unspecified (gray residual node)
      • JB63.7 Human immunodeficiency disease complicating pregnancy, childbirth or the puerperium (gray node)
      • 1C61.Z Human immunodeficiency virus disease associated with malaria, clinical stage unspecified (gray residual node)
    • 1C62 Human immunodeficiency virus disease without mention of tuberculosis or malaria (gray node)
      • 1C62.0 HIV disease clinical stage 1 without mention of tuberculosis or malaria (gray node)
      • 1C62.1 HIV disease clinical stage 2 without mention of tuberculosis or malaria (gray node)
        • DA01.01 Hairy leukoplakia (gray node)
      • 1C62.2 HIV disease clinical stage 3 without mention of tuberculosis or malaria (gray node)
      • 1C62.3 HIV disease clinical stage 4 without mention of tuberculosis or malaria (gray node)
        • 6D85.3 Dementia due to human immunodeficiency virus (gray node)
        • 9B72.01 HIV retinitis (gray node)
      • JB63.7 Human immunodeficiency disease complicating pregnancy, childbirth or the puerperium (gray node)
      • 1C62.Z Human immunodeficiency virus disease without mention of associated disease or condition, clinical stage unspecified (gray residual node)
  • JB63.3 Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth or the puerperium (gray node)
  • 1A9Y Other specified predominantly sexually transmitted infections
  • 1A9Z Predominantly sexually transmitted infections, unspecified

Mycobacterial diseases
  • Tuberculosis
    • 1B10 Tuberculosis of the respiratory system
      • 1B10.0 Respiratory tuberculosis, confirmed
      • 1B10.1 Respiratory tuberculosis, not confirmed
      • 1B10.Z Respiratory tuberculosis, without mention of bacteriological or histological confirmation
    • 1B11 Tuberculosis of the nervous system
    • 1B12 Tuberculosis of other systems and organs
    • 1B13 Miliary tuberculosis
      • 1B13.0 Acute miliary tuberculosis of a single specified site
      • 1B13.1 Acute miliary tuberculosis of multiple sites
      • 1B13.Y Other specified miliary tuberculosis
      • 1B13.Z Miliary tuberculosis, unspecified
    • 1B14 Latent tuberculosis
    • KA61.0 Congenital tuberculosis (gray node)
    • JB63.0 Tuberculosis complicating pregnancy, childbirth or the puerperium (gray node)
      • JB63.00 Tuberculous placenta (gray node)
      • JB63.0Y Other specified tuberculosis complicating pregnancy, childbirth or the puerperium (gray residual node)
      • JB63.0Z Tuberculosis complicating pregnancy, childbirth or the puerperium, unspecified (gray residual node)
    • 1C60.0 HIV disease clinical stage 1 associated with tuberculosis (gray node)
    • 1C60.1 HIV disease clinical stage 2 associated with tuberculosis (gray node)
    • 1C60.2 HIV disease clinical stage 3 associated with tuberculosis (gray node)
    • 1C60.3 HIV disease clinical stage 4 associated with tuberculosis (gray node)
      • 1C60.30 Kaposi sarcoma associated with human immunodeficiency virus disease associated with tuberculosis (gray node)
      • 6D85.3 Dementia due to human immunodeficiency virus (gray node)
      • 9B72.01 HIV retinitis (gray node)
      • 1C60.3Y Other specified HIV disease clinical stage 4 associated with tuberculosis (gray residual node)
      • 1C60.3Z HIV disease clinical stage 4 associated with tuberculosis, unspecified (gray residual node)
    • 1C60 Human immunodeficiency virus disease associated with tuberculosis (gray node)
      • 1C60.0 HIV disease clinical stage 1 associated with tuberculosis (gray node)
      • 1C60.1 HIV disease clinical stage 2 associated with tuberculosis (gray node)
      • 1C60.2 HIV disease clinical stage 3 associated with tuberculosis (gray node)
      • 1C60.3 HIV disease clinical stage 4 associated with tuberculosis (gray node)
      • JB63.7 Human immunodeficiency disease complicating pregnancy, childbirth or the puerperium (gray node)
      • 1C60.Z Human immunodeficiency virus disease associated with tuberculosis, clinical stage unspecified (gray residual node)
    • 1B1Y Other specified tuberculosis
    • 1B1Z Tuberculosis, unspecified
  • 1B20 Leprosy
  • 1B21 Infections due to non-tuberculous mycobacteria
    • 1B21.0 Pulmonary infection due to non-tuberculosis mycobacterium
    • 1B21.1 Non-tuberculous mycobacterial lymphadenitis
    • 1B21.2 Cutaneous non-tuberculous mycobacterial infection
      • 1B21.20 Mycobacterium ulcerans infection
      • 1B21.2Y Cutaneous infection due to other specified non-tuberculous mycobacteria
      • 1B21.2Z Cutaneous infection due to unspecified non-tuberculous mycobacteria
    • 1B21.3 Disseminated non-tuberculous mycobacterial infection
    • 1B21.4 Gastrointestinal non-tuberculous mycobacterial infection
    • 1B21.Y Non-tuberculous mycobacterial infection of other specified site
    • 1B21.Z Non-tuberculous mycobacterial infection of unspecified site
  • 1B2Y Other specified mycobacterial diseases
  • 1B2Z Mycobacterial diseases, unspecified

Certain staphylococcal or streptococcal diseases

Pyogenic bacterial infections of the skin or subcutaneous tissues

Certain zoonotic bacterial diseases

Other bacterial diseases

Human immunodeficiency virus disease
  • 1C60 Human immunodeficiency virus disease associated with tuberculosis
    • 1C60.0 HIV disease clinical stage 1 associated with tuberculosis
    • 1C60.1 HIV disease clinical stage 2 associated with tuberculosis
    • 1C60.2 HIV disease clinical stage 3 associated with tuberculosis
    • 1C60.3 HIV disease clinical stage 4 associated with tuberculosis
  • 1C61 Human immunodeficiency virus disease associated with malaria
    • 1C61.0 HIV disease clinical stage 1 associated with malaria
    • 1C61.1 HIV disease clinical stage 2 associated with malaria
    • 1C61.2 HIV disease clinical stage 3 associated with malaria
    • 1C61.3 HIV disease clinical stage 4 associated with malaria
      • 1C61.30 Kaposi sarcoma associated with human immunodeficiency virus disease associated with malaria
      • 6D85.3 Dementia due to human immunodeficiency virus (gray node)
      • 9B72.01 HIV retinitis (gray node)
      • 1C61.3Y Other specified HIV disease clinical stage 4 associated with malaria
      • 1C61.3Z HIV disease clinical stage 4 associated with malaria, unspecified
    • JB63.7 Human immunodeficiency disease complicating pregnancy, childbirth or the puerperium (gray node)
    • 1C61.Z Human immunodeficiency virus disease associated with malaria, clinical stage unspecified
  • 1C62 Human immunodeficiency virus disease without mention of tuberculosis or malaria
    • 1C62.0 HIV disease clinical stage 1 without mention of tuberculosis or malaria
    • 1C62.1 HIV disease clinical stage 2 without mention of tuberculosis or malaria
      • DA01.01 Hairy leukoplakia (gray node)
    • 1C62.2 HIV disease clinical stage 3 without mention of tuberculosis or malaria
    • 1C62.3 HIV disease clinical stage 4 without mention of tuberculosis or malaria
      • 6D85.3 Dementia due to human immunodeficiency virus (gray node)
      • 9B72.01 HIV retinitis (gray node)
    • JB63.7 Human immunodeficiency disease complicating pregnancy, childbirth or the puerperium (gray node)
    • 1C62.Z Human immunodeficiency virus disease without mention of associated disease or condition, clinical stage unspecified

Viral infections of the central nervous system

Non-viral and unspecified infections of the central nervous system

Dengue
  • 1D20 Dengue without warning signs
  • 1D21 Dengue with warning signs
  • 1D22 Severe dengue
  • 1D2Z Dengue fever, unspecified

Certain arthropod-borne viral fevers

Certain zoonotic viral diseases

Certain other viral diseases

Influenza
  • 1E30 Influenza due to identified seasonal influenza virus
  • 1E31 Influenza due to identified zoonotic or pandemic influenza virus
  • 1E32 Influenza, virus not identified

Viral hepatitis

Viral infections characterised by skin or mucous membrane lesions

Mycoses

Parasitic diseases

Sepsis
  • 1G40 Sepsis without septic shock
  • 1G41 Sepsis with septic shock
  • JB40.0 Puerperal sepsis (gray node)
  • KA60 Sepsis of foetus or newborn (gray node)

Certain other disorders of infectious origin

1G60 Certain other disorders of infectious origin

Sequelae of infectious diseases

Infections of the foetus or newborn

Infections of the foetus or newborn (gray node)

  • KA60 Sepsis of foetus or newborn (gray node)
  • KA61 Other bacterial infections of the foetus or newborn (gray node)
    • KA61.0 Congenital tuberculosis (gray node)
    • KA61.1 Neonatal listeriosis (gray node)
    • 1A60.1 Early congenital syphilis, latent (gray node)
    • 1A60.0 Early congenital syphilis, symptomatic (gray node)
    • 1B71.2 Neonatal necrotising fasciitis (gray node)
    • 1C15 Tetanus neonatorum (gray node)
    • KA61.Z Bacterial infection of the foetus or newborn, unspecified (gray residual node)
  • KA62 Viral infection in the foetus or newborn (gray node)
    • KA62.0 Congenital Zika virus infection (gray node)
    • KA62.1 Congenital Epstein-Barr virus infection (gray node)
    • KA62.2 Congenital Varicella Zoster virus infection (gray node)
    • KA62.3 Congenital cytomegalovirus infection (gray node)
    • KA62.4 Congenital echovirus infection (gray node)
    • KA62.5 Congenital enterovirus infection (gray node)
    • KA62.6 Congenital human immunodeficiency virus infection (gray node)
    • KA62.7 Congenital parvovirus syndrome (gray node)
    • KA62.8 Congenital rubella syndrome (gray node)
    • KA62.9 Congenital viral hepatitis (gray node)
    • KA62.A Perinatal Herpes simplex infection (gray node)
    • KA62.Y Other specified viral infection in the foetus or newborn (gray node)
    • KA62.Z Viral infection in the foetus or newborn, unspecified (gray residual node)
  • KA63 Fungal infection of foetus or newborn (gray node)
    • KA63.0 Malassezia infection in newborn (gray node)
    • KA63.1 Neonatal aspergillosis (gray node)
    • KA63.2 Neonatal candidosis (gray node)
    • KA63.Y Other specified fungal infection of foetus or newborn (gray residual node)
    • KA63.Z Fungal infection of foetus or newborn, unspecified (gray residual node)
  • KA64 Parasitic diseases in the foetus or newborn (gray node)
    • KA64.0 Congenital toxoplasmosis (gray node)
    • KA64.1 Congenital falciparum malaria (gray node)
    • KA64.Y Other specified parasitic diseases in the foetus or newborn (gray residual node)
    • KA64.Z Parasitic diseases in the foetus or newborn, unspecified (gray residual node)
  • KA65 Neonatal infections of certain specified sites (gray node)
    • KA65.0 Neonatal conjunctivitis or dacryocystitis (gray node)
    • KA65.1 Omphalitis of newborn (gray node)
    • KA65.2 Neonatal urinary tract infection (gray node)
    • KA65.3 Neonatal infectious mastitis (gray node)
    • KA65.4 Neonatal meningitis (gray node)
    • KB25 Neonatal tracheitis (gray node)
    • Neonatal skin infection (gray node)
      • EH10 Neonatal viral infections involving the skin (gray node)
        • KA62.A Perinatal Herpes simplex infection (gray node)
      • EH11 Neonatal pyogenic skin infections (gray node)
        • 1B71.2 Neonatal necrotising fasciitis (gray node)
      • EH12 Neonatal fungal infections involving the skin (gray node)
      • EH1Z Neonatal skin infection, unspecified (gray residual node)
    • KA65.Y Neonatal infections of other specified sites (gray residual node)
  • KA00.3 Foetus or newborn affected by maternal infectious diseases (gray node)
  • 1A60 Congenital syphilis (gray node)
  • KA6Y Other specified infections of the foetus or newborn (gray residual node)
  • KA6Z Infections of the foetus or newborn, unspecified (gray residual node)

Human prion diseases

Human prion diseases (gray node)

  • 8E00 Sporadic Creutzfeldt-Jakob Disease (gray node)
  • 8E01 Acquired prion disease (gray node)
    • 8E01.0 Iatrogenically acquired Creutzfeldt-Jakob Disease (gray node)
    • 8E01.1 Kuru (gray node)
    • 8E01.2 Variant Creutzfeldt-Jakob Disease (gray node)
    • 8E01.3 Other acquired Creutzfeldt-Jakob Disease (gray node)
  • 8E02 Genetic prion diseases (gray node)
    • 8E02.0 Genetic Creutzfeldt-Jakob disease (gray node)
    • 8E02.1 Gerstmann-Straussler-Scheinker syndrome (gray node)
    • 8E02.2 Fatal familial insomnia (gray node)
    • 8E02.3 Other genetic prion diseases (gray node)
    • 8E02.Y Other specified Creutzfeldt-Jakob disease (gray residual node)
    • 8E02.Z Creutzfeldt-Jakob disease, unspecified (gray residual node)
  • 8E03 Variably protease sensitive prionopathy (gray node)
  • 8E0Y Other specified human prion diseases (gray residual node)
  • 8E0Z Human prion diseases, unspecified (gray residual node)

Pneumonia

CA40 Pneumonia (gray node)

Infection, unspecified

See also
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