{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,4]],"date-time":"2026-11-04T03:21:51Z","timestamp":1793762511785,"version":"4.6.1"},"reference-count":19,"publisher":"Elsevier BV","issue":"4","license":[{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"funder":[{"DOI":"10.13039\/100012856","name":"Alberta Children's Hospital Research Institute","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100012856","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["ajog.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["American Journal of Obstetrics and Gynecology"],"published-print":{"date-parts":[[2021,10]]},"DOI":"10.1016\/j.ajog.2021.03.036","type":"journal-article","created":{"date-parts":[[2021,4,16]],"date-time":"2021-04-16T17:19:15Z","timestamp":1618593555000},"page":"422.e1-422.e11","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":41,"title":["Impact of the ICD-9-CM to ICD-10-CM transition on the incidence of severe maternal morbidity among delivery hospitalizations in the United States"],"prefix":"10.1016","volume":"225","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4449-9256","authenticated-orcid":false,"given":"Amy","family":"Metcalfe","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manal","family":"Sheikh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erin","family":"Hetherington","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.ajog.2021.03.036_bib1","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1111\/aogs.13245","article-title":"Racial disparities in comorbidity and severe maternal morbidity\/mortality in the United States: an analysis of temporal trends","volume":"97","author":"Metcalfe","year":"2018","journal-title":"Acta Obstet Gynecol Scand"},{"key":"10.1016\/j.ajog.2021.03.036_bib2","doi-asserted-by":"crossref","first-page":"379","DOI":"10.1111\/ppe.12678","article-title":"Recent history of maternal mortality in the United States: tragedy and farce","volume":"34","author":"Joseph","year":"2020","journal-title":"Paediatr Perinat Epidemiol"},{"key":"10.1016\/j.ajog.2021.03.036_bib3","doi-asserted-by":"crossref","first-page":"42","DOI":"10.1097\/NNR.0000000000000397","article-title":"Inpatient maternal mortality in the United States, 2002-2014","volume":"69","author":"Mogos","year":"2020","journal-title":"Nurs Res"},{"key":"10.1016\/j.ajog.2021.03.036_bib4","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0233697","article-title":"Monitoring maternal near miss\/severe maternal morbidity: a systematic review of global practices","volume":"15","author":"England","year":"2020","journal-title":"PLoS One"},{"key":"10.1016\/j.ajog.2021.03.036_bib5","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1001\/jama.2018.6823","article-title":"Transition to the ICD-10 in the United States: an emerging data chasm","volume":"320","author":"Khera","year":"2018","journal-title":"JAMA"},{"key":"10.1016\/j.ajog.2021.03.036_bib6","doi-asserted-by":"crossref","first-page":"457","DOI":"10.1177\/0020731419848294","article-title":"Intercapitalist maneuvers and the ICD-10 transition: the instrumental role of the state in the corporate governance of U.S. health care","volume":"49","author":"Bugbee","year":"2019","journal-title":"Int J Health Serv"},{"key":"10.1016\/j.ajog.2021.03.036_bib7","doi-asserted-by":"crossref","first-page":"3704","DOI":"10.1111\/1475-6773.12981","article-title":"Conversion of the Agency for Healthcare Research and Quality\u2019s quality indicators from ICD-9-CM to ICD-10-CM\/PCS: the process, results, and implications for users","volume":"53","author":"Utter","year":"2018","journal-title":"Health Serv Res"},{"key":"10.1016\/j.ajog.2021.03.036_bib8","doi-asserted-by":"crossref","first-page":"286","DOI":"10.1016\/j.jvs.2019.09.040","article-title":"Translating coding lists in administrative claims-based research for cardiovascular procedures","volume":"72","author":"Wanken","year":"2020","journal-title":"J\u00a0Vasc Surg"},{"key":"10.1016\/j.ajog.2021.03.036_bib9","doi-asserted-by":"crossref","first-page":"839","DOI":"10.1002\/pds.4563","article-title":"Early impact of the ICD-10-CM transition\u00a0on\u00a0selected health outcomes in 13 electronic health care databases in the United\u00a0States","volume":"27","author":"Panozzo","year":"2018","journal-title":"Pharmacoepidemiol Drug Saf"},{"key":"10.1016\/j.ajog.2021.03.036_bib10","doi-asserted-by":"crossref","first-page":"e42","DOI":"10.1097\/MLR.0000000000001010","article-title":"ICD-10 coding will challenge researchers: caution and collaboration may reduce measurement error and improve comparability over time","volume":"57","author":"Mainor","year":"2019","journal-title":"Med Care"},{"key":"10.1016\/j.ajog.2021.03.036_bib11","doi-asserted-by":"crossref","first-page":"918","DOI":"10.1097\/MLR.0000000000000805","article-title":"Trends in opioid-related inpatient stays shifted after the US transitioned to ICD-10-CM diagnosis coding in 2015","volume":"55","author":"Heslin","year":"2017","journal-title":"Med Care"},{"key":"10.1016\/j.ajog.2021.03.036_bib12","doi-asserted-by":"crossref","first-page":"1365","DOI":"10.1002\/bdr2.1578","article-title":"The impact of the ICD-9-CM to ICD-10-CM transition on the prevalence of birth defects among infant hospitalizations in the United States","volume":"111","author":"Salemi","year":"2019","journal-title":"Birth Defects Res"},{"key":"10.1016\/j.ajog.2021.03.036_bib14","doi-asserted-by":"crossref","first-page":"469","DOI":"10.1007\/s10995-007-0256-6","article-title":"An enhanced method for identifying obstetric deliveries: implications for estimating maternal morbidity","volume":"12","author":"Kuklina","year":"2008","journal-title":"Matern Child Health J"},{"key":"10.1016\/j.ajog.2021.03.036_bib16","doi-asserted-by":"crossref","first-page":"311","DOI":"10.1016\/j.ajog.2019.02.055","article-title":"Putting the \u201dM\u201d back in maternal-fetal medicine: a 5-year report card on a collaborative effort to address maternal morbidity and mortality in the United States","volume":"221","author":"D\u2019Alton","year":"2019","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2021.03.036_bib17","doi-asserted-by":"crossref","first-page":"298.e1","DOI":"10.1016\/j.ajog.2017.01.017","article-title":"Reduction of severe maternal morbidity from hemorrhage using a state perinatal quality collaborative","volume":"216","author":"Main","year":"2017","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2021.03.036_bib18","doi-asserted-by":"crossref","first-page":"989","DOI":"10.1007\/s10995-019-02744-1","article-title":"Severe maternal morbidity, a tale of 2 states using data for action-Ohio and Massachusetts","volume":"23","author":"Conrey","year":"2019","journal-title":"Matern Child Health J"},{"key":"10.1016\/j.ajog.2021.03.036_bib19","doi-asserted-by":"crossref","first-page":"328","DOI":"10.1186\/s12913-018-3110-1","article-title":"Transition to International Classification of Disease Version 10, Clinical Modification: the impact on internal medicine and internal medicine subspecialties","volume":"18","author":"Caskey","year":"2018","journal-title":"BMC Health Serv Res"},{"key":"10.1016\/j.ajog.2021.03.036_bib20","doi-asserted-by":"crossref","first-page":"643.e1","DOI":"10.1016\/j.ajog.2015.11.004","article-title":"Measuring severe maternal morbidity: validation of potential measures","volume":"214","author":"Main","year":"2016","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2021.03.036_bib21","doi-asserted-by":"crossref","first-page":"786","DOI":"10.1097\/MLR.0b013e318178eae4","article-title":"Measuring maternal morbidity in routinely collected health data: development and validation of a maternal morbidity outcome indicator","volume":"46","author":"Roberts","year":"2008","journal-title":"Med Care"}],"container-title":["American Journal of Obstetrics and Gynecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002937821002167?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002937821002167?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T11:33:02Z","timestamp":1757590382000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0002937821002167"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,10]]},"references-count":19,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2021,10]]}},"alternative-id":["S0002937821002167"],"URL":"https:\/\/doi.org\/10.1016\/j.ajog.2021.03.036","relation":{},"ISSN":["0002-9378"],"issn-type":[{"value":"0002-9378","type":"print"}],"subject":[],"published":{"date-parts":[[2021,10]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Impact of the ICD-9-CM to ICD-10-CM transition on the incidence of severe maternal morbidity among delivery hospitalizations in the United States","name":"articletitle","label":"Article Title"},{"value":"American Journal of Obstetrics and Gynecology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ajog.2021.03.036","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2021 Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}