{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:43:46Z","timestamp":1785545026556,"version":"3.56.0"},"reference-count":7,"publisher":"JMIR Publications Inc.","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JMIR Med Inform"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>We discovered that the official list of clinical codes for pregnancy during the COVID-19 pandemic identified some unlikely pregnancies (for example, in older men), principally due to a code describing a specific fetal position (\u201cknee presentation\u201d), which notably lacks \u201cfetal\u201d in the code description. This is an informative example of commonly overlooked problems in creating and using clinical data.<\/jats:p>","DOI":"10.2196\/89620","type":"journal-article","created":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T18:45:07Z","timestamp":1781203507000},"page":"e89620-e89620","source":"Crossref","is-referenced-by-count":0,"title":["Pregnancy-Related Clinical Codes in Unlikely Populations in Primary Care"],"prefix":"10.2196","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3429-9576","authenticated-orcid":false,"given":"Helen","family":"Curtis","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7784-1719","authenticated-orcid":false,"given":"Peter","family":"Inglesby","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5127-4728","authenticated-orcid":false,"given":"Ben","family":"Goldacre","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5295-4370","authenticated-orcid":false,"given":"Rose","family":"Higgins","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2098-1278","authenticated-orcid":false,"given":"Amir","family":"Mehrkar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6354-3454","authenticated-orcid":false,"given":"Sebastian","family":"Bacon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3786-9063","authenticated-orcid":false,"given":"Brian","family":"MacKenna","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1010","published-online":{"date-parts":[[2026,6,30]]},"reference":[{"issue":"714","key":"R1","doi-asserted-by":"publisher","first-page":"e51","DOI":"10.3399\/BJGP.2021.0376","article-title":"Trends and clinical characteristics of COVID-19 vaccine recipients: a federated analysis of 57.9 million patients\u2019 primary care records in situ using OpenSAFELY","volume":"72","author":"Curtis","journal-title":"Br J Gen Pract"},{"key":"R2","unstructured":"PRIMIS. Pregnancy or delivery codes recorded in the 8.5 months before audit run date. OpenCodelists. 2021. URL: https:\/\/www.opencodelists.org\/codelist\/primis-covid19-vacc-uptake\/pregdel\/v1.2.1\/ [Accessed 22-06-2026]"},{"key":"R3","unstructured":"Curtis H . OpenSAFELY PRIMIS codelist prevalence. GitHub. 2021. URL: https:\/\/github.com\/opensafely\/primis-codelist-prevalence [Accessed 11-08-2025]"},{"key":"R4","unstructured":"Wiedemann M Tamborska A Higgins R et al. General practice (SNOMED CT). OpenCodeCounts. 2025. URL: https:\/\/bennettoxford.github.io\/opencodecounts\/articles\/app.html [Accessed 11-08-2025]"},{"key":"R5","unstructured":"GP Connect: Update Record. NHS England Digital. URL: https:\/\/digital.nhs.uk\/services\/gp-connect\/gp-connect-in-your-organisation\/gp-connect-update-record [Accessed 09-12-2025]"},{"key":"R6","unstructured":"Pregnant patients received \u2018inappropriate\u2019 medication due to pharmacy coding errors. Patient Safety Learning - the hub. URL: https:\/\/www.pslhub.org\/blogs\/entry\/8697-pregnant-patients-received-%E2%80%98inappropriate%E2%80%99-medication-due-to-pharmacy-coding-errors\/ [Accessed 09-12-2025]"},{"key":"R7","unstructured":"Process for registering a patient gender re-assignment. Primary Care Support England (PCSE). 2023. URL: https:\/\/pcse.england.nhs.uk\/sites\/default\/files\/2023-08\/process-for-registering-a-patient-gender-re-assignmentv10.pdf [Accessed 09-12-2025]"}],"container-title":["JMIR Medical Informatics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/medinform.jmir.org\/2026\/1\/e89620","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T22:24:36Z","timestamp":1785536676000},"score":1,"resource":{"primary":{"URL":"https:\/\/medinform.jmir.org\/2026\/1\/e89620"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,30]]},"references-count":7,"URL":"https:\/\/doi.org\/10.2196\/89620","relation":{},"ISSN":["2291-9694"],"issn-type":[{"value":"2291-9694","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6,30]]},"article-number":"v14i714e89620"}}