{
    "abstract": "Intracranial venous thrombosis (ICVT) accounts for around 0.5% of all stroke cases. There have been no previously published studies of the International Classification of Diseases, Tenth Edition (ICD-10) validation for the identification of ICVT admissions in adults.\nThe aims of this study were to validate and quantify the performance of the ICD-10 coding system for identifying cases of ICVT in adults and to derive an estimate of incidence.\nAdministrative data were collected for all patients admitted to a regional neurosciences centre over a 5-year period. We searched for the following ICD-10 codes at any position: G08.X (intracranial and intraspinal phlebitis and thrombophlebitis), I67.6 (non-pyogenic thrombosis of intracranial venous system), I63.6 (cerebral infarction due to cerebral venous thrombosis, non-pyogenic), O22.5 (cerebral venous thrombosis in pregnancy) and O87.3 (cerebral venous thrombosis in the puerperium).\nSixty-five admissions were identified by at least one of the relevant ICD-10 codes. The overall positive predictive value (PPV) for confirmed ICVT from all of the admissions combined was 92.3% (60 out of 65) with the results for each code as follows: G08.X 91.5% (54 of 59), O22.5 100% (4 of 4), I67.6 100% (1 of 1), I63.6 100% (1 of 1) and O87.3 100% (1 of 1). There were 40 unique cases of ICVT over a 5-year period giving an annual incidence of ICVT of 5 per million.\nAll codes gave a high PPV.\nAs demonstrated in previous studies, the incidence of ICVT may be higher than previously thought.",
    "authors": [
        {
            "affiliation": "Salford Royal Hospital, UK.\nLancaster University, UK.",
            "firstname": "Joel D",
            "initials": "JD",
            "lastname": "Handley"
        },
        {
            "affiliation": "Lancaster University, UK.\nRoyal Preston Hospital, UK.",
            "firstname": "Hedley Ca",
            "initials": "HC",
            "lastname": "Emsley"
        }
    ],
    "conclusions": null,
    "copyrights": null,
    "doi": "10.1177/1833358318819105",
    "journal": "Health information management : journal of the Health Information Management Association of Australia",
    "keywords": [
        "ICD-10",
        "cerebral thrombosis",
        "clinical coding",
        "incidence",
        "sinus thrombosis",
        "venous thrombosis"
    ],
    "methods": "Administrative data were collected for all patients admitted to a regional neurosciences centre over a 5-year period. We searched for the following ICD-10 codes at any position: G08.X (intracranial and intraspinal phlebitis and thrombophlebitis), I67.6 (non-pyogenic thrombosis of intracranial venous system), I63.6 (cerebral infarction due to cerebral venous thrombosis, non-pyogenic), O22.5 (cerebral venous thrombosis in pregnancy) and O87.3 (cerebral venous thrombosis in the puerperium).",
    "publication_date": "2018-12-20",
    "pubmed_id": "30563370",
    "results": "Sixty-five admissions were identified by at least one of the relevant ICD-10 codes. The overall positive predictive value (PPV) for confirmed ICVT from all of the admissions combined was 92.3% (60 out of 65) with the results for each code as follows: G08.X 91.5% (54 of 59), O22.5 100% (4 of 4), I67.6 100% (1 of 1), I63.6 100% (1 of 1) and O87.3 100% (1 of 1). There were 40 unique cases of ICVT over a 5-year period giving an annual incidence of ICVT of 5 per million.",
    "title": "Validation of ICD-10 codes shows intracranial venous thrombosis incidence to be higher than previously reported.",
    "xml": "<Element 'PubmedArticle' at 0x788505d11da0>"
}