[
  {
    "phenotype_id": "PH4085",
    "phenotype_version_id": 9303,
    "name": "Secondary polycythaemia",
    "definition": "Abnormally high mass or concentration of red blood cells in the blood, either due to an increase in erythropoiesis or a decrease in plasma volume.\n\nUKB baseline self reported fields.\n",
    "implementation": "The earliest record across all sources is obtained.\n",
    "publications": [
      {
        "doi": "https://doi.org/10.1038/s41598-025-05838-9",
        "details": "Torralbo, Ana and Davitte, Jonathan M. and Croteau-Chonka, Damien C. and Ytsma, Cai R. and Tomlinson, Christopher and Fitzpatrick, Natalie and Chung, Sheng-Chia and Fatemifar, Ghazaleh and Cortes, Adrian S. and Richardson, Tom G. and Barclay, Matthew and Carrasco Zanini Sanchez, Julia and Finan, Chris and Hemingway, Harry and Hingorani, Aroon D. and Kuan Po Ai, Valerie and Langenberg, Claudia and Lyratzopoulos, Georgios and Lumbers, Tom and Pietzner, Maik and Shah, Anoop Dinesh and Thygesen, Johan Hilge and Zelenka, Natalie and Whittaker, John C. and Ehm, Margaret G. and Denaxas, Spiros, A Computational Framework for Defining and Validating Reproducible Phenotyping Algorithms of 313 Diseases in the UK Biobank.",
        "primary": true
      }
    ],
    "validation": "Phenotypes underwent a multi\\-layered validation approach that included a) evaluating data source concordance, b) age\\-sex incidence and baseline prevalence patterns, c) an external comparison to a representative and unselected UK EHR dataset, d) modifiable risk factor associations, and e) genetic correlations with external genome\\-wide association studies (GWAS). Results showed consistent disease distributions by age and sex, high ranked correlation with general population prevalence estimates, confirmed risk factor associations, and significant genetic correlations with external GWAS.\n",
    "citation_requirements": null,
    "created": "2026-06-08T20:04:59.445267Z",
    "author": "Torralbo, A; Davitte, J M; Croteau-Chonka, D C; Ytsma, C; Tomlinson, C; Fitzpatrick, N K; Chung, S C; Fatemifar, G; Cortes, A S; Richardson, T G; Barclay, M; Carrasco Zanini, J; Finan, C; Hemingway, H; Hingorani, A; Kuan, V; Langenberg, C; Lyratzopoulos, G; Lumbers, R T; Pietzner, M; Shah, A D; Thygesen, J H; Zelenka, N; Whittaker, J C; Ehm, M G; Denaxas, S",
    "collections": [
      {
        "name": "Phenotype Library",
        "value": 18
      },
      {
        "name": "UK Biobank",
        "value": 32
      }
    ],
    "tags": null,
    "organisation": null,
    "world_access": 1,
    "updated": "2026-06-08T20:04:59.437688Z",
    "sex": [
      {
        "name": "Both",
        "value": "3"
      }
    ],
    "type": [
      {
        "name": "Disease or syndrome",
        "value": "2"
      }
    ],
    "trials": null,
    "ontology": [
      {
        "name": "Secondary polycythemia (disorder)",
        "value": 137557
      }
    ],
    "phenoflowid": null,
    "data_sources": [
      {
        "name": "UK Biobank",
        "value": 13,
        "uid": "6a9f93ad-2434-41d9-93bf-6e9d2eee04e5",
        "url": "https://healthdatagateway.org/en/dataset/700",
        "datasource_id": 700
      },
      {
        "name": "Patient Episode Dataset for Wales (PEDW)",
        "value": 40,
        "uid": "4c33a5d2-164c-41d7-9797-dc2b008cc852",
        "url": "https://healthdatagateway.org/en/dataset/318",
        "datasource_id": 318
      },
      {
        "name": "Scottish Cancer Registry (SMR06)",
        "value": 417,
        "uid": "ad36dc03-1856-44de-99b0-1af6f312d86b",
        "url": "https://healthdatagateway.org/en/dataset/79",
        "datasource_id": 79
      },
      {
        "name": "Cancer Registration Data",
        "value": 788,
        "uid": "6904a2ff-ab44-4dd6-b9ec-25d3cad29e43",
        "url": "https://healthdatagateway.org/en/dataset/880",
        "datasource_id": 880
      }
    ],
    "endorsements": null,
    "project_name": null,
    "coding_system": [
      {
        "name": "ICD10 codes",
        "value": 4
      },
      {
        "name": "Read codes v3",
        "value": 6
      }
    ],
    "corresp_author": "Ana Torralbo",
    "event_date_range": null,
    "concept_information": [
      {
        "concept_id": 9517,
        "concept_version_id": 17002,
        "concept_name": "Diagnoses - main ICD10",
        "coding_system": {
          "id": 4,
          "name": "ICD10 codes",
          "description": "ICD10 Codes"
        },
        "phenotype_id": "PH4085",
        "phenotype_version_id": 9303,
        "phenotype_name": "Secondary polycythaemia",
        "code_attribute_header": [
          "type"
        ],
        "codes": [
          {
            "code": "D75.1",
            "description": "Secondary polycythaemia",
            "attributes": {
              "type": "any"
            }
          }
        ]
      },
      {
        "concept_id": 9518,
        "concept_version_id": 17003,
        "concept_name": "Diagnoses - secondary ICD10",
        "coding_system": {
          "id": 4,
          "name": "ICD10 codes",
          "description": "ICD10 Codes"
        },
        "phenotype_id": "PH4085",
        "phenotype_version_id": 9303,
        "phenotype_name": "Secondary polycythaemia",
        "code_attribute_header": [
          "type"
        ],
        "codes": [
          {
            "code": "D75.1",
            "description": "Secondary polycythaemia",
            "attributes": {
              "type": "any"
            }
          }
        ]
      },
      {
        "concept_id": 9519,
        "concept_version_id": 17004,
        "concept_name": "Underlying (primary) cause of death: ICD10",
        "coding_system": {
          "id": 4,
          "name": "ICD10 codes",
          "description": "ICD10 Codes"
        },
        "phenotype_id": "PH4085",
        "phenotype_version_id": 9303,
        "phenotype_name": "Secondary polycythaemia",
        "code_attribute_header": [
          "type"
        ],
        "codes": [
          {
            "code": "D75.1",
            "description": "Secondary polycythaemia",
            "attributes": {
              "type": "any"
            }
          }
        ]
      },
      {
        "concept_id": 9520,
        "concept_version_id": 17005,
        "concept_name": "Contributory (secondary) causes of death: ICD10",
        "coding_system": {
          "id": 4,
          "name": "ICD10 codes",
          "description": "ICD10 Codes"
        },
        "phenotype_id": "PH4085",
        "phenotype_version_id": 9303,
        "phenotype_name": "Secondary polycythaemia",
        "code_attribute_header": [
          "type"
        ],
        "codes": [
          {
            "code": "D75.1",
            "description": "Secondary polycythaemia",
            "attributes": {
              "type": "any"
            }
          }
        ]
      },
      {
        "concept_id": 9521,
        "concept_version_id": 17006,
        "concept_name": "GP clinical event records",
        "coding_system": {
          "id": 6,
          "name": "Read codes v3",
          "description": "Read codes v3"
        },
        "phenotype_id": "PH4085",
        "phenotype_version_id": 9303,
        "phenotype_name": "Secondary polycythaemia",
        "code_attribute_header": [
          "type"
        ],
        "codes": [
          {
            "code": "D410.00",
            "description": "Secondary polycythaemia",
            "attributes": {
              "type": "any"
            }
          },
          {
            "code": "D410000",
            "description": "Stress polycythaemia",
            "attributes": {
              "type": "any"
            }
          },
          {
            "code": "D410011",
            "description": "Spurious polycythaemia",
            "attributes": {
              "type": "any"
            }
          },
          {
            "code": "D410100",
            "description": "High altitude polycythaemia",
            "attributes": {
              "type": "any"
            }
          },
          {
            "code": "D410200",
            "description": "Polycythaemia due to cyanotic heart disease",
            "attributes": {
              "type": "any"
            }
          },
          {
            "code": "D410300",
            "description": "Polycythaemia due to cyanotic respiratory disease",
            "attributes": {
              "type": "any"
            }
          },
          {
            "code": "D410400",
            "description": "Renal polycythaemia",
            "attributes": {
              "type": "any"
            }
          },
          {
            "code": "D410z00",
            "description": "Secondary polycythaemia NOS",
            "attributes": {
              "type": "any"
            }
          }
        ]
      }
    ],
    "status": 1,
    "doi": "https://doi.org/10.48533/1g2w-j256",
    "is_deleted": false,
    "publish_status": 2,
    "owner": "ieuan.scanlon",
    "template": {
      "id": 2,
      "name": "BHF Data Science Centre Phenotype",
      "description": "BHF Data Science Centre Phenotype definitions that describe a list of clinical codes, algorithms using clinical codes, or set of clinical trials. Visit the BHF Data Science Centre website to learn more: https://bhfdatasciencecentre.org",
      "version_id": 1
    },
    "versions": [
      {
        "version_id": 9303,
        "version_name": "Secondary polycythaemia",
        "version_date": "2026-06-08T20:04:59.549769Z",
        "is_published": true,
        "is_latest": true
      }
    ]
  }
]