[
  {
    "phenotype_id": "PH3470",
    "phenotype_version_id": 8513,
    "name": "ICD-10 Chapter III",
    "definition": "This codelist was taken from [OpenCodelists](https://www.opencodelists.org/), created by [OpenSAFELY](https://www.opensafely.org/). We recommend viewing this Phenotype on the OpenCodelist website to view the most recent version.\n\n\n© University of Oxford for the Bennett Institute for Applied Data Science 2025\\. This work may be copied freely for non\\-commercial research and study.\n\n",
    "implementation": null,
    "publications": null,
    "validation": null,
    "citation_requirements": null,
    "created": "2026-01-26T23:18:39.877245Z",
    "author": "OpenSAFELY",
    "collections": [
      {
        "name": "OpenCodelist",
        "value": 31
      },
      {
        "name": "Phenotype Library",
        "value": 18
      }
    ],
    "tags": null,
    "organisation": {
      "id": 1,
      "slug": "opensafely",
      "name": "OpenSAFELY"
    },
    "world_access": 1,
    "updated": "2026-01-26T23:18:39.872442Z",
    "references": [],
    "signed_off": [],
    "methodology": "",
    "coding_system": [
      {
        "name": "ICD10 codes",
        "value": 4
      }
    ],
    "open_codelist_id": "opensafely/icd-10-chapter-iii",
    "source_reference": "https://www.opencodelists.org/codelist/opensafely/icd-10-chapter-iii/5ec57aee",
    "concept_information": [
      {
        "concept_id": 8690,
        "concept_version_id": 16175,
        "concept_name": "opensafely/icd-10-chapter-iii/5ec57aee",
        "coding_system": {
          "id": 4,
          "name": "ICD10 codes",
          "description": "ICD10 Codes"
        },
        "phenotype_id": "PH3470",
        "phenotype_version_id": 8513,
        "phenotype_name": "ICD-10 Chapter III",
        "code_attribute_header": [],
        "codes": [
          {
            "code": "D50",
            "description": "Iron deficiency anaemia",
            "attributes": null
          },
          {
            "code": "D500",
            "description": "Iron deficiency anaemia secondary to blood loss (chronic)",
            "attributes": null
          },
          {
            "code": "D501",
            "description": "Sideropenic dysphagia",
            "attributes": null
          },
          {
            "code": "D508",
            "description": "Other iron deficiency anaemias",
            "attributes": null
          },
          {
            "code": "D509",
            "description": "Iron deficiency anaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D50-D53",
            "description": "Nutritional anaemias",
            "attributes": null
          },
          {
            "code": "D51",
            "description": "Vitamin B 12  deficiency anaemia",
            "attributes": null
          },
          {
            "code": "D510",
            "description": "Vitamin B 12  deficiency anaemia due to intrinsic factor deficiency",
            "attributes": null
          },
          {
            "code": "D511",
            "description": "Vitamin B 12  deficiency anaemia due to selective vitamin B 12  malabsorption with proteinuria",
            "attributes": null
          },
          {
            "code": "D512",
            "description": "Transcobalamin II deficiency",
            "attributes": null
          },
          {
            "code": "D513",
            "description": "Other dietary vitamin B 12  deficiency anaemia",
            "attributes": null
          },
          {
            "code": "D518",
            "description": "Other vitamin B 12  deficiency anaemias",
            "attributes": null
          },
          {
            "code": "D519",
            "description": "Vitamin B 12  deficiency anaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D52",
            "description": "Folate deficiency anaemia",
            "attributes": null
          },
          {
            "code": "D520",
            "description": "Dietary folate deficiency anaemia",
            "attributes": null
          },
          {
            "code": "D521",
            "description": "Drug-induced folate deficiency anaemia",
            "attributes": null
          },
          {
            "code": "D528",
            "description": "Other folate deficiency anaemias",
            "attributes": null
          },
          {
            "code": "D529",
            "description": "Folate deficiency anaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D53",
            "description": "Other nutritional anaemias",
            "attributes": null
          },
          {
            "code": "D530",
            "description": "Protein deficiency anaemia",
            "attributes": null
          },
          {
            "code": "D531",
            "description": "Other megaloblastic anaemias, not elsewhere classified",
            "attributes": null
          },
          {
            "code": "D532",
            "description": "Scorbutic anaemia",
            "attributes": null
          },
          {
            "code": "D538",
            "description": "Other specified nutritional anaemias",
            "attributes": null
          },
          {
            "code": "D539",
            "description": "Nutritional anaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D55",
            "description": "Anaemia due to enzyme disorders",
            "attributes": null
          },
          {
            "code": "D550",
            "description": "Anaemia due to glucose-6-phosphate dehydrogenase [G6PD] deficiency",
            "attributes": null
          },
          {
            "code": "D551",
            "description": "Anaemia due to other disorders of glutathione metabolism",
            "attributes": null
          },
          {
            "code": "D552",
            "description": "Anaemia due to disorders of glycolytic enzymes",
            "attributes": null
          },
          {
            "code": "D553",
            "description": "Anaemia due to disorders of nucleotide metabolism",
            "attributes": null
          },
          {
            "code": "D558",
            "description": "Other anaemias due to enzyme disorders",
            "attributes": null
          },
          {
            "code": "D559",
            "description": "Anaemia due to enzyme disorder, unspecified",
            "attributes": null
          },
          {
            "code": "D55-D59",
            "description": "Haemolytic anaemias",
            "attributes": null
          },
          {
            "code": "D56",
            "description": "Thalassaemia",
            "attributes": null
          },
          {
            "code": "D560",
            "description": "Alpha thalassaemia",
            "attributes": null
          },
          {
            "code": "D561",
            "description": "Beta thalassaemia",
            "attributes": null
          },
          {
            "code": "D562",
            "description": "Delta-beta thalassaemia",
            "attributes": null
          },
          {
            "code": "D563",
            "description": "Thalassaemia trait",
            "attributes": null
          },
          {
            "code": "D564",
            "description": "Hereditary persistence of fetal haemoglobin [HPFH]",
            "attributes": null
          },
          {
            "code": "D568",
            "description": "Other thalassaemias",
            "attributes": null
          },
          {
            "code": "D569",
            "description": "Thalassaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D57",
            "description": "Sickle-cell disorders",
            "attributes": null
          },
          {
            "code": "D570",
            "description": "Sickle-cell anaemia with crisis",
            "attributes": null
          },
          {
            "code": "D571",
            "description": "Sickle-cell anaemia without crisis",
            "attributes": null
          },
          {
            "code": "D572",
            "description": "Double heterozygous sickling disorders",
            "attributes": null
          },
          {
            "code": "D573",
            "description": "Sickle-cell trait",
            "attributes": null
          },
          {
            "code": "D578",
            "description": "Other sickle-cell disorders",
            "attributes": null
          },
          {
            "code": "D58",
            "description": "Other hereditary haemolytic anaemias",
            "attributes": null
          },
          {
            "code": "D580",
            "description": "Hereditary spherocytosis",
            "attributes": null
          },
          {
            "code": "D581",
            "description": "Hereditary elliptocytosis",
            "attributes": null
          },
          {
            "code": "D582",
            "description": "Other haemoglobinopathies",
            "attributes": null
          },
          {
            "code": "D588",
            "description": "Other specified hereditary haemolytic anaemias",
            "attributes": null
          },
          {
            "code": "D589",
            "description": "Hereditary haemolytic anaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D59",
            "description": "Acquired haemolytic anaemia",
            "attributes": null
          },
          {
            "code": "D590",
            "description": "Drug-induced autoimmune haemolytic anaemia",
            "attributes": null
          },
          {
            "code": "D591",
            "description": "Other autoimmune haemolytic anaemias",
            "attributes": null
          },
          {
            "code": "D592",
            "description": "Drug-induced nonautoimmune haemolytic anaemia",
            "attributes": null
          },
          {
            "code": "D593",
            "description": "Haemolytic-uraemic syndrome",
            "attributes": null
          },
          {
            "code": "D594",
            "description": "Other nonautoimmune haemolytic anaemias",
            "attributes": null
          },
          {
            "code": "D595",
            "description": "Paroxysmal nocturnal haemoglobinuria [Marchiafava-Micheli]",
            "attributes": null
          },
          {
            "code": "D596",
            "description": "Haemoglobinuria due to haemolysis from other external causes",
            "attributes": null
          },
          {
            "code": "D598",
            "description": "Other acquired haemolytic anaemias",
            "attributes": null
          },
          {
            "code": "D599",
            "description": "Acquired haemolytic anaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D60",
            "description": "Acquired pure red cell aplasia [erythroblastopenia]",
            "attributes": null
          },
          {
            "code": "D600",
            "description": "Chronic acquired pure red cell aplasia",
            "attributes": null
          },
          {
            "code": "D601",
            "description": "Transient acquired pure red cell aplasia",
            "attributes": null
          },
          {
            "code": "D608",
            "description": "Other acquired pure red cell aplasias",
            "attributes": null
          },
          {
            "code": "D609",
            "description": "Acquired pure red cell aplasia, unspecified",
            "attributes": null
          },
          {
            "code": "D60-D64",
            "description": "Aplastic and other anaemias",
            "attributes": null
          },
          {
            "code": "D61",
            "description": "Other aplastic anaemias",
            "attributes": null
          },
          {
            "code": "D610",
            "description": "Constitutional aplastic anaemia",
            "attributes": null
          },
          {
            "code": "D611",
            "description": "Drug-induced aplastic anaemia",
            "attributes": null
          },
          {
            "code": "D612",
            "description": "Aplastic anaemia due to other external agents",
            "attributes": null
          },
          {
            "code": "D613",
            "description": "Idiopathic aplastic anaemia",
            "attributes": null
          },
          {
            "code": "D618",
            "description": "Other specified aplastic anaemias",
            "attributes": null
          },
          {
            "code": "D619",
            "description": "Aplastic anaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D62",
            "description": "Acute posthaemorrhagic anaemia",
            "attributes": null
          },
          {
            "code": "D63",
            "description": "Anaemia in chronic diseases classified elsewhere",
            "attributes": null
          },
          {
            "code": "D630",
            "description": "Anaemia in neoplastic disease C00-D48",
            "attributes": null
          },
          {
            "code": "D638",
            "description": "Anaemia in other chronic diseases classified elsewhere",
            "attributes": null
          },
          {
            "code": "D64",
            "description": "Other anaemias",
            "attributes": null
          },
          {
            "code": "D640",
            "description": "Hereditary sideroblastic anaemia",
            "attributes": null
          },
          {
            "code": "D641",
            "description": "Secondary sideroblastic anaemia due to disease",
            "attributes": null
          },
          {
            "code": "D642",
            "description": "Secondary sideroblastic anaemia due to drugs and toxins",
            "attributes": null
          },
          {
            "code": "D643",
            "description": "Other sideroblastic anaemias",
            "attributes": null
          },
          {
            "code": "D644",
            "description": "Congenital dyserythropoietic anaemia",
            "attributes": null
          },
          {
            "code": "D648",
            "description": "Other specified anaemias",
            "attributes": null
          },
          {
            "code": "D649",
            "description": "Anaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D65",
            "description": "Disseminated intravascular coagulation [defibrination syndrome]",
            "attributes": null
          },
          {
            "code": "D65-D69",
            "description": "Coagulation defects, purpura and other haemorrhagic conditions",
            "attributes": null
          },
          {
            "code": "D66",
            "description": "Hereditary factor VIII deficiency",
            "attributes": null
          },
          {
            "code": "D67",
            "description": "Hereditary factor IX deficiency",
            "attributes": null
          },
          {
            "code": "D68",
            "description": "Other coagulation defects",
            "attributes": null
          },
          {
            "code": "D680",
            "description": "Von Willebrand disease",
            "attributes": null
          },
          {
            "code": "D681",
            "description": "Hereditary factor XI deficiency",
            "attributes": null
          },
          {
            "code": "D682",
            "description": "Hereditary deficiency of other clotting factors",
            "attributes": null
          },
          {
            "code": "D683",
            "description": "Haemorrhagic disorder due to circulating anticoagulants",
            "attributes": null
          },
          {
            "code": "D684",
            "description": "Acquired coagulation factor deficiency",
            "attributes": null
          },
          {
            "code": "D685",
            "description": "Primary thrombophilia",
            "attributes": null
          },
          {
            "code": "D686",
            "description": "Other thrombophilia",
            "attributes": null
          },
          {
            "code": "D688",
            "description": "Other specified coagulation defects",
            "attributes": null
          },
          {
            "code": "D689",
            "description": "Coagulation defect, unspecified",
            "attributes": null
          },
          {
            "code": "D69",
            "description": "Purpura and other haemorrhagic conditions",
            "attributes": null
          },
          {
            "code": "D690",
            "description": "Allergic purpura",
            "attributes": null
          },
          {
            "code": "D691",
            "description": "Qualitative platelet defects",
            "attributes": null
          },
          {
            "code": "D692",
            "description": "Other nonthrombocytopenic purpura",
            "attributes": null
          },
          {
            "code": "D693",
            "description": "Idiopathic thrombocytopenic purpura",
            "attributes": null
          },
          {
            "code": "D694",
            "description": "Other primary thrombocytopenia",
            "attributes": null
          },
          {
            "code": "D695",
            "description": "Secondary thrombocytopenia",
            "attributes": null
          },
          {
            "code": "D696",
            "description": "Thrombocytopenia, unspecified",
            "attributes": null
          },
          {
            "code": "D698",
            "description": "Other specified haemorrhagic conditions",
            "attributes": null
          },
          {
            "code": "D699",
            "description": "Haemorrhagic condition, unspecified",
            "attributes": null
          },
          {
            "code": "D70",
            "description": "Agranulocytosis",
            "attributes": null
          },
          {
            "code": "D70-D77",
            "description": "Other diseases of blood and blood-forming organs",
            "attributes": null
          },
          {
            "code": "D71",
            "description": "Functional disorders of polymorphonuclear neutrophils",
            "attributes": null
          },
          {
            "code": "D72",
            "description": "Other disorders of white blood cells",
            "attributes": null
          },
          {
            "code": "D720",
            "description": "Genetic anomalies of leukocytes",
            "attributes": null
          },
          {
            "code": "D721",
            "description": "Eosinophilia",
            "attributes": null
          },
          {
            "code": "D728",
            "description": "Other specified disorders of white blood cells",
            "attributes": null
          },
          {
            "code": "D729",
            "description": "Disorder of white blood cells, unspecified",
            "attributes": null
          },
          {
            "code": "D73",
            "description": "Diseases of spleen",
            "attributes": null
          },
          {
            "code": "D730",
            "description": "Hyposplenism",
            "attributes": null
          },
          {
            "code": "D731",
            "description": "Hypersplenism",
            "attributes": null
          },
          {
            "code": "D732",
            "description": "Chronic congestive splenomegaly",
            "attributes": null
          },
          {
            "code": "D733",
            "description": "Abscess of spleen",
            "attributes": null
          },
          {
            "code": "D734",
            "description": "Cyst of spleen",
            "attributes": null
          },
          {
            "code": "D735",
            "description": "Infarction of spleen",
            "attributes": null
          },
          {
            "code": "D738",
            "description": "Other diseases of spleen",
            "attributes": null
          },
          {
            "code": "D739",
            "description": "Disease of spleen, unspecified",
            "attributes": null
          },
          {
            "code": "D74",
            "description": "Methaemoglobinaemia",
            "attributes": null
          },
          {
            "code": "D740",
            "description": "Congenital methaemoglobinaemia",
            "attributes": null
          },
          {
            "code": "D748",
            "description": "Other methaemoglobinaemias",
            "attributes": null
          },
          {
            "code": "D749",
            "description": "Methaemoglobinaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D75",
            "description": "Other diseases of blood and blood-forming organs",
            "attributes": null
          },
          {
            "code": "D750",
            "description": "Familial erythrocytosis",
            "attributes": null
          },
          {
            "code": "D751",
            "description": "Secondary polycythaemia",
            "attributes": null
          },
          {
            "code": "D758",
            "description": "Other specified diseases of blood and blood-forming organs",
            "attributes": null
          },
          {
            "code": "D759",
            "description": "Disease of blood and blood-forming organs, unspecified",
            "attributes": null
          },
          {
            "code": "D76",
            "description": "Other specified diseases with participation of lymphoreticular and reticulohistiocytic tissue",
            "attributes": null
          },
          {
            "code": "D761",
            "description": "Haemophagocytic lymphohistiocytosis",
            "attributes": null
          },
          {
            "code": "D762",
            "description": "Haemophagocytic syndrome, infection-associated",
            "attributes": null
          },
          {
            "code": "D763",
            "description": "Other histiocytosis syndromes",
            "attributes": null
          },
          {
            "code": "D77",
            "description": "Other disorders of blood and blood-forming organs in diseases classified elsewhere",
            "attributes": null
          },
          {
            "code": "D80",
            "description": "Immunodeficiency with predominantly antibody defects",
            "attributes": null
          },
          {
            "code": "D800",
            "description": "Hereditary hypogammaglobulinaemia",
            "attributes": null
          },
          {
            "code": "D801",
            "description": "Nonfamilial hypogammaglobulinaemia",
            "attributes": null
          },
          {
            "code": "D802",
            "description": "Selective deficiency of immunoglobulin A [IgA]",
            "attributes": null
          },
          {
            "code": "D803",
            "description": "Selective deficiency of immunoglobulin G [IgG] subclasses",
            "attributes": null
          },
          {
            "code": "D804",
            "description": "Selective deficiency of immunoglobulin M [IgM]",
            "attributes": null
          },
          {
            "code": "D805",
            "description": "Immunodeficiency with increased immunoglobulin M [IgM]",
            "attributes": null
          },
          {
            "code": "D806",
            "description": "Antibody deficiency with near-normal immunoglobulins or with hyperimmunoglobulinaemia",
            "attributes": null
          },
          {
            "code": "D807",
            "description": "Transient hypogammaglobulinaemia of infancy",
            "attributes": null
          },
          {
            "code": "D808",
            "description": "Other immunodeficiencies with predominantly antibody defects",
            "attributes": null
          },
          {
            "code": "D809",
            "description": "Immunodeficiency with predominantly antibody defects, unspecified",
            "attributes": null
          },
          {
            "code": "D80-D89",
            "description": "Certain disorders involving the immune mechanism",
            "attributes": null
          },
          {
            "code": "D81",
            "description": "Combined immunodeficiencies",
            "attributes": null
          },
          {
            "code": "D810",
            "description": "Severe combined immunodeficiency [SCID] with reticular dysgenesis",
            "attributes": null
          },
          {
            "code": "D811",
            "description": "Severe combined immunodeficiency [SCID] with low T- and B-cell numbers",
            "attributes": null
          },
          {
            "code": "D812",
            "description": "Severe combined immunodeficiency [SCID] with low or normal B-cell numbers",
            "attributes": null
          },
          {
            "code": "D813",
            "description": "Adenosine deaminase [ADA] deficiency",
            "attributes": null
          },
          {
            "code": "D814",
            "description": "Nezelof syndrome",
            "attributes": null
          },
          {
            "code": "D815",
            "description": "Purine nucleoside phosphorylase [PNP] deficiency",
            "attributes": null
          },
          {
            "code": "D816",
            "description": "Major histocompatibility complex class I deficiency",
            "attributes": null
          },
          {
            "code": "D817",
            "description": "Major histocompatibility complex class II deficiency",
            "attributes": null
          },
          {
            "code": "D818",
            "description": "Other combined immunodeficiencies",
            "attributes": null
          },
          {
            "code": "D819",
            "description": "Combined immunodeficiency, unspecified",
            "attributes": null
          },
          {
            "code": "D82",
            "description": "Immunodeficiency associated with other major defects",
            "attributes": null
          },
          {
            "code": "D820",
            "description": "Wiskott-Aldrich syndrome",
            "attributes": null
          },
          {
            "code": "D821",
            "description": "Di George syndrome",
            "attributes": null
          },
          {
            "code": "D822",
            "description": "Immunodeficiency with short-limbed stature",
            "attributes": null
          },
          {
            "code": "D823",
            "description": "Immunodeficiency following hereditary defective response to Epstein-Barr virus",
            "attributes": null
          },
          {
            "code": "D824",
            "description": "Hyperimmunoglobulin E [IgE] syndrome",
            "attributes": null
          },
          {
            "code": "D828",
            "description": "Immunodeficiency associated with other specified major defects",
            "attributes": null
          },
          {
            "code": "D829",
            "description": "Immunodeficiency associated with major defect, unspecified",
            "attributes": null
          },
          {
            "code": "D83",
            "description": "Common variable immunodeficiency",
            "attributes": null
          },
          {
            "code": "D830",
            "description": "Common variable immunodeficiency with predominant abnormalities of B-cell numbers and function",
            "attributes": null
          },
          {
            "code": "D831",
            "description": "Common variable immunodeficiency with predominant immunoregulatory T-cell disorders",
            "attributes": null
          },
          {
            "code": "D832",
            "description": "Common variable immunodeficiency with autoantibodies to B- or T-cells",
            "attributes": null
          },
          {
            "code": "D838",
            "description": "Other common variable immunodeficiencies",
            "attributes": null
          },
          {
            "code": "D839",
            "description": "Common variable immunodeficiency, unspecified",
            "attributes": null
          },
          {
            "code": "D84",
            "description": "Other immunodeficiencies",
            "attributes": null
          },
          {
            "code": "D840",
            "description": "Lymphocyte function antigen-1 [LFA-1] defect",
            "attributes": null
          },
          {
            "code": "D841",
            "description": "Defects in the complement system",
            "attributes": null
          },
          {
            "code": "D848",
            "description": "Other specified immunodeficiencies",
            "attributes": null
          },
          {
            "code": "D849",
            "description": "Immunodeficiency, unspecified",
            "attributes": null
          },
          {
            "code": "D86",
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            "code": "D860",
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            "attributes": null
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          {
            "code": "D861",
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            "attributes": null
          },
          {
            "code": "D862",
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            "attributes": null
          },
          {
            "code": "D863",
            "description": "Sarcoidosis of skin",
            "attributes": null
          },
          {
            "code": "D868",
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            "attributes": null
          },
          {
            "code": "D869",
            "description": "Sarcoidosis, unspecified",
            "attributes": null
          },
          {
            "code": "D89",
            "description": "Other disorders involving the immune mechanism, not elsewhere classified",
            "attributes": null
          },
          {
            "code": "D890",
            "description": "Polyclonal hypergammaglobulinaemia",
            "attributes": null
          },
          {
            "code": "D891",
            "description": "Cryoglobulinaemia",
            "attributes": null
          },
          {
            "code": "D892",
            "description": "Hypergammaglobulinaemia, unspecified",
            "attributes": null
          },
          {
            "code": "D893",
            "description": "Immune reconstitution syndrome",
            "attributes": null
          },
          {
            "code": "D898",
            "description": "Other specified disorders involving the immune mechanism, not elsewhere classified",
            "attributes": null
          },
          {
            "code": "D899",
            "description": "Disorder involving the immune mechanism, unspecified",
            "attributes": null
          },
          {
            "code": "III",
            "description": "Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism",
            "attributes": null
          }
        ]
      }
    ],
    "coding_system_release": "",
    "open_codelist_version_id": "5ec57aee",
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    "status": 1,
    "doi": "https://doi.org/10.48533/3yng-1253",
    "is_deleted": false,
    "publish_status": 2,
    "owner": "ieuan.scanlon",
    "template": {
      "id": 3,
      "name": "OpenCodelists Phenotype",
      "description": "OpenSafely's OpenCodelist Phenotype, visit https://www.opencodelists.org/ to learn more",
      "version_id": 1
    },
    "versions": [
      {
        "version_id": 8513,
        "version_name": "ICD-10 Chapter III",
        "version_date": "2026-01-26T23:18:39.883397Z",
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]