Anatomy
T017 Anatomical_Structure
T018 Embryonic_Structure
T021 Fully_Formed_Anatomical_Structure
T022 Body_System
T023 Body_Part_Organ_or_Organ_Component
T024 Tissue
T029 Body_Location_or_Region
T030 Body_Space_or_Junction
T025 Cell
T026 Cell_Component

Behavior
T053 Behavior
T054 Social_Behavior
T055 Individual_Behavior

Biologic function
T038 Biologic_Function
T039 Physiologic_Function
T040 Organism_Function
T042 Organ_or_Tissue_Function
T043 Cell_Function
T044 Molecular_Function
T045 Genetic_Function

Disorder
T019 Congenital_Abnormality
T020 Acquired_Abnormality
T037 Injury_or_Poisoning
T047 Disease_or_Syndrome
T048 Mental_or_Behavioral_Dysfunction
T049 Cell_or_Molecular_Dysfunction
T184 Sign_or_Symptom
T190 Anatomical_Abnormality
T191 Neoplastic_Process

Gene or protein
T028 Gene_or_Genome
T086 Nucleotide_Sequence
T087 Amino_Acid_Sequence
T114 Nucleic_Acid_Nucleoside_or_Nucleotide
T116 Amino_Acid_Peptide_or_Protein
T192 Receptor

Geographic area
T083 Geographic_Area

Microorganism
T004 Fungus
T005 Virus
T006 Rickettsia_or_Chlamydia
T007 Bacterium
T194 Archaeon

Organism
T002 Plant
T008 Animal
T009 Invertebrate
T010 Vertebrate
T011 Amphibian
T012 Bird
T013 Fish
T014 Reptile
T015 Mammal
T016 Human

Organization
T093 Health_Care_Related_Organization
T094 Professional_Society

Population group
T098 Population_Group
T100 Age_Group

Procedure
T059 Laboratory_Procedure
T060 Diagnostic_Procedure
T061 Therapeutic_or_Preventive_Procedure

Specialty or specialist
T097 Professional_or_Occupational_Group
T091 Biomedical_Occupation_or_Discipline

Substance
T121 Pharmacologic_Substance
T127 Vitamin
T195 Antibiotic
T111 Eicosanoid
T115 Organophosphorus_Compound
T118 Carbohydrate
T119 Lipid
T123 Biologically_Active_Substance
T124 Neuroreactive_Substance_or_Biogenic_Amine
T130 Indicator_Reagent_or_Diagnostic_Aid
T131 Hazardous_or_Poisonous_Substance
T196 Element_Ion_or_Isotope
T197 Inorganic_Chemical
T110 Steroid
T103 Chemical
T104 Chemical_Viewed_Structurally
T109 Organic_Chemical
T120 Chemical_Viewed_Functionally
T200 Clinical_Drug
T088 Carbohydrate_Sequence

None of above
T051 Event
T052 Activity
T056 Daily_or_Recreational_Activity
T057 Occupational_Activity
T064 Governmental_or_Regulatory_Activity
T065 Educational_Activity
T066 Machine_Activity
T067 Phenomenon_or_Process
T068 Human-caused_Phenomenon_or_Process
T069 Environmental_Effect_of_Humans
T070 Natural_Phenomenon_or_Process
T071 Entity
T072 Physical_Object
T073 Manufactured_Object
T077 Conceptual_Entity
T078 Idea_or_Concept
T079 Temporal_Concept
T080 Qualitative_Concept
T081 Quantitative_Concept
T089 Regulation_or_Law
T095 Self-help_or_Relief_Organization
T096 Group
T102 Group_Attribute
T170 Intellectual_Product
T171 Language
T185 Classification