Validation of ICD-10 codes shows intracranial venous thrombosis incidence to be higher than previously reported
Validation of ICD-10 codes shows intracranial venous thrombosis incidence to be higher than previously reported
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DOI：
10.1177/1833358318819105
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发表时间：
2020-01-01
影响因子：
3.2
通讯作者：
Emsley, Hedley C. A.
中科院分区：
文献类型：
--
作者：
Handley, Joel D.;Emsley, Hedley C. A.
背景：颅内静脉血栓形成（ICVT）约占所有脑卒中病例的0.5%。以前没有发表过关于国际疾病分类第十版（ICD-10）验证成人ICVT入院的研究。目的：本研究的目的是验证和量化ICD-10编码系统在识别成人ICVT病例方面的性能，并得出发病率的估计。方法：收集一个区域神经科学中心5年来收治的所有患者的管理数据。我们在任意位置搜索以下ICD-10代码：G08。X（颅内及椎管内静脉炎及血栓性静脉炎），I67.6（颅内静脉系统非化脓性血栓形成），I63.6（脑静脉血栓形成所致脑梗死，非化脓性），O22.5（妊娠期脑静脉血栓形成），O87.3（产褥期脑静脉血栓形成）。结果：65例入院患者被至少一个相关ICD-10代码识别。所有入院患者确诊ICVT的总体阳性预测值（PPV）为92.3%(60 / 65)，每个代码的结果如下：G08。X 91.5%（59人中54人），O22.5 100%（4人中4人），I67.6 100%（1人中1人），I63.6 100%（1人中1人）和O87.3 100%（1人中1人）。在5年期间，有40例独特的ICVT病例，每年ICVT发病率为百万分之5。结论：所有编码均具有较高的PPV。
Background: 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. Objective: The 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. Method: 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). 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. Conclusions: All codes gave a high PPV.