List of MeSH codes

The following is a list of the codes for MeSH (Medical Subject Headings), an in-depth controlled vocabulary and index of journal articles and books in the life sciences.

It is a product of the United States National Library of Medicine (NLM).

The prefixes (C01, A01, etc.) are linked to more specific sub-lists of codes. The medical terms are linked to articles about those topics on the website. Searched terms (your searches) are listed on the website, as well as medical articles for specific or non-specific terms are included with searches.

The items are linked (all the same) by:

• Tree number(s), which includes the prefix (e.g. A01) and path to the item with the numbers before the item entry number
• Unique ID, which starts with D0 (most of the time)
• RDF Unique Identifier (ID), which is the hyperlink version of the unique ID
• Entry version (name) and entry terms, which are all of the human-readable names that are connected to the entry
• NLN Classification #

Realistically, MeSH codes (both this list or articles, and sub-lists for prefixes) would show in search results for every medical term that is included in the MeSH database. This would allow medical terms on the page to help find where an item appears (in its parent lists) and what is similar to it, as in those that are close to the entry. The alternate names (which help with navigation and search of the site) are useful for Wikidata, a sister Wiki project. Each entry on the lists of MeSH codes has a link to the NLN_NIH website item for the entry. MeSH entries can be linked to using any of the items names or identifiers.

The source for this content is the set of 2024 MeSH Trees from NLM.^[2]

• A – Anatomy
  • A01 – body regions (74 articles)
  • A02 – musculoskeletal system (213 articles)
  • A03 – digestive system (98 articles)
  • A04 – respiratory system (46 articles)
  • A05 – urogenital system (87 articles)
  • A06 – endocrine system
  • A07 – cardiovascular system
  • A08 – nervous system
  • A09 – sense organs
  • A10 – tissues
  • A11 – cells
  • A12 – fluids and secretions
  • A13 – animal structures
  • A14 – stomatognathic system
  • A15 – hemic and immune systems
  • A16 – embryonic structures
  • A17 – integumentary system
  • A18 – plant structures
  • A19 – fungal structures
  • A20 – bacterial structures
  • A21 – viral structures
• B – Organisms
  • B01 – eukaryota (animals, plants, fungi)
  • B02 – archaea
  • B03 – bacteria
  • B04 – viruses
  • B05 – organism forms
• C – Diseases
  • C01 – bacterial infections and mycoses
  • C02 – virus diseases
  • C03 – parasitic diseases
  • C04 – neoplasms
  • C05 – musculoskeletal diseases
  • C06 – digestive system diseases
  • C07 – stomatognathic diseases
  • C08 – respiratory tract diseases
  • C09 – otorhinolaryngologic diseases
  • C10 – nervous system diseases
  • C11 – eye diseases
  • C12 – urologic and male genital diseases
  • C13 – female genital diseases and pregnancy complications
  • C14 – cardiovascular diseases
  • C15 – hemic and lymphatic diseases
  • C16 – congenital, hereditary, and neonatal diseases and abnormalities
  • C17 – skin and connective tissue diseases
  • C18 – nutritional and metabolic diseases
  • C19 – endocrine system diseases
  • C20 – immune system diseases
  • C21 – disorders of environmental origin
  • C22 – animal diseases
  • C23 – pathological conditions, signs and symptoms
  • C24 – occupational diseases
  • C25 – chemically induced disorders
  • C26 – wounds and injuries
• D – Chemicals and Drugs
  • D01 – inorganic chemicals
  • D02 – organic chemicals
  • D03 – heterocyclic compounds
  • D04 – polycyclic compounds
  • D05 – macromolecular substances
  • D06 – hormones, hormone substitutes, and hormone antagonists
  • D07 – none (enzymes and coenzymes)
  • D08 – enzymes and coenzymes (carbohydrates)
  • D09 – carbohydrates (lipids)
  • D10 – lipids (amino acids, peptides, and proteins)
  • D11 – none (nucleic acids, nucleotides, and nucleosides)
  • D12 – amino acids, peptides, and proteins
  • D13 – nucleic acids, nucleotides, and nucleosides
  • D20 – complex mixtures
  • D23 – biological factors
  • D25 – biomedical and dental materials
  • D26 – pharmaceutical preparations
  • D27 – chemical actions and uses
• E – Analytical, Diagnostic and Therapeutic Techniques and Equipment
  • E01 – diagnosis
  • E02 – therapeutics
  • E03 – anesthesia and analgesia
  • E04 – surgical procedures, operative
  • E05 – investigative techniques
  • E06 – dentistry
  • E07 – equipment and supplies
• F – Psychiatry and Psychology
  • F01 – behavior and behavior mechanisms
  • F02 – psychological phenomena and processes
  • F03 – mental disorders
  • F04 – behavioral disciplines and activities
• G – Phenomena and Processes
  • G01 – physical phenomena
  • G02 – chemical phenomena
  • G03 – metabolism
  • G04 – cell phenomena and immunity
  • G05 – genetic phenomena
  • G06 – microbiological phenomena
  • G07 – physiological processes
  • G08 – reproductive and urinary physiological phenomena
  • G09 – circulatory and respiratory physiological phenomena
  • G10 – digestive and oral physiological phenomena
  • G11 – musculoskeletal and neural physiological phenomena
  • G12 – immune system phenomena
  • G13 – integumentary system physiological phenomena
  • G14 – ocular physiological phenomena
  • G15 – plant physiological phenomena
  • G16 – biological phenomena
  • G17 – mathematical concepts
• H – Disciplines and Occupations
  • H01 – natural science disciplines
  • H02 – health occupations
• I – Anthropology, Education, Sociology and Social Phenomena
  • I01 – social sciences
  • I02 – education
  • I03 – human activities
• J – Technology and Food and Beverages
  • J01 – technology, industry, and agriculture
  • J02 – food and beverages
  • J03 – non-medical public and private facilities
• K – Humanities
  • K01 – humanities
• L – Information Science
  • L01 – information science
• M – Persons
  • M01 – persons
• N – Healthcare
  • N01 – population characteristics
  • N02 – healthcare facilities, manpower, and services
  • N03 – healthcare economics and organizations
  • N04 – health services administration
  • N05 – health care quality, access, and evaluation
  • N06 – environment and public health
• V – Publication Characteristics
  • V01 – publication components (publication type)
  • V02 – publication formats (publication type)
  • V03 – study characteristics (publication type)
  • V04 – support of research
• Z – Geographic Locations
  • Z01 – geographic locations