{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T11:01:06Z","timestamp":1779188466919,"version":"3.51.4"},"reference-count":8,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2017,1,17]],"date-time":"2017-01-17T00:00:00Z","timestamp":1484611200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100007059","name":"Northwestern University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100007059","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100006108","name":"National Center for Advancing Translational Sciences","doi-asserted-by":"publisher","award":["UL1TR000150"],"award-info":[{"award-number":["UL1TR000150"]}],"id":[{"id":"10.13039\/100006108","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000133","name":"Agency for Healthcare Research and Quality","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000133","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100001582","name":"Dermatology Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100001582","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Allergy"],"published-print":{"date-parts":[[2017,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Evaluation of large\u2010scale data sets is needed to better understand the epidemiology, cost, and burden of atopic dermatitis (<jats:styled-content style=\"fixed-case\">AD<\/jats:styled-content>). We sought to validate the use of <jats:styled-content style=\"fixed-case\">ICD<\/jats:styled-content>\u20109\u2010<jats:styled-content style=\"fixed-case\">CM<\/jats:styled-content> codes for identifying <jats:styled-content style=\"fixed-case\">AD<\/jats:styled-content>.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Patients from a large metropolitan quaternary care medical center with a diagnostic code of either 691.8 (<jats:styled-content style=\"fixed-case\">AD<\/jats:styled-content>) or 692.9 (eczema and contact dermatitis) were queried. Medical records were reviewed for demographics, Hanifin &amp; Rajka (H&amp;R) and United Kingdom Working Party (<jats:styled-content style=\"fixed-case\">UKWP<\/jats:styled-content>) criteria. Sensitivity, specificity, and positive predictive values (<jats:styled-content style=\"fixed-case\">PPV<\/jats:styled-content>) of the codes were calculated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of 43 278 patients identified with associated <jats:styled-content style=\"fixed-case\">ICD<\/jats:styled-content>\u20109 codes of 691.8 or 692.9, 519 and 253 with 691.8 and 692.9 were randomly selected for chart review. There was extensive overlap: 34.3% had \u22651 occurrences of 691.8 and 692.9 and 25.6% had multiple occurrences of both codes. Among patients with \u22651 occurrence of 691.8, 29.9% and 30.8% met the H&amp;R and <jats:styled-content style=\"fixed-case\">UKWP<\/jats:styled-content> criteria, respectively. Similarly, among patients with \u22651 occurrence of 692.9, 33.7% and 32.2% met the H&amp;R and <jats:styled-content style=\"fixed-case\">UKWP<\/jats:styled-content> criteria. Increased <jats:styled-content style=\"fixed-case\">PPV<\/jats:styled-content> was associated with concomitant diagnoses of asthma, hay fever, and food allergy and increased disease severity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>In the outpatient setting, the <jats:styled-content style=\"fixed-case\">ICD<\/jats:styled-content>\u20109\u2010<jats:styled-content style=\"fixed-case\">CM<\/jats:styled-content> codes 691.8 and 692.9 alone have poor <jats:styled-content style=\"fixed-case\">PPV<\/jats:styled-content>. Incorporation of diagnoses of asthma, hay fever, and food allergy improves <jats:styled-content style=\"fixed-case\">PPV<\/jats:styled-content> and specificity. In the inpatient setting, a primary discharge diagnosis of 691.8 had excellent <jats:styled-content style=\"fixed-case\">PPV<\/jats:styled-content>. Although <jats:styled-content style=\"fixed-case\">ICD<\/jats:styled-content>\u201010 has been adopted in Europe and more recently in the <jats:styled-content style=\"fixed-case\">USA<\/jats:styled-content>, the same systematic errors would likely occur unless providers standardize their coding.<\/jats:p><\/jats:sec>","DOI":"10.1111\/all.13113","type":"journal-article","created":{"date-parts":[[2016,12,21]],"date-time":"2016-12-21T00:08:39Z","timestamp":1482278919000},"page":"1091-1095","source":"Crossref","is-referenced-by-count":57,"title":["Validation of International Classification of Disease Ninth Revision codes for atopic dermatitis"],"prefix":"10.1111","volume":"72","author":[{"given":"D. Y.","family":"Hsu","sequence":"first","affiliation":[{"name":"Department of Dermatology Northwestern University Feinberg School of Medicine Chicago IL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P.","family":"Dalal","sequence":"additional","affiliation":[{"name":"Department of Dermatology Northwestern University Feinberg School of Medicine Chicago IL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K. A.","family":"Sable","sequence":"additional","affiliation":[{"name":"Department of Dermatology Northwestern University Feinberg School of Medicine Chicago IL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N.","family":"Voruganti","sequence":"additional","affiliation":[{"name":"Department of Dermatology Northwestern University Feinberg School of Medicine Chicago IL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"Nardone","sequence":"additional","affiliation":[{"name":"Department of Dermatology Northwestern University Feinberg School of Medicine Chicago IL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D. P.","family":"West","sequence":"additional","affiliation":[{"name":"Department of Dermatology Northwestern University Feinberg School of Medicine Chicago IL USA"},{"name":"Department of Pediatrics Northwestern University Feinberg School of Medicine Chicago IL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3686-7805","authenticated-orcid":false,"given":"J. I.","family":"Silverberg","sequence":"additional","affiliation":[{"name":"Departments of Dermatology, Preventive Medicine and Medical Social Sciences Northwestern University Feinberg School of Medicine Chicago IL USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,1,17]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamadermatol.2014.5432"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/all.12685"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/jid.2015.337"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/bjd.14172"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jaad.2013.10.010"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2133.1994.tb08532.x"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.5070\/D3204022368"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/all.12982"}],"container-title":["Allergy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fall.13113","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/all.13113","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,4]],"date-time":"2023-10-04T03:05:32Z","timestamp":1696388732000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/all.13113"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,1,17]]},"references-count":8,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2017,7]]}},"alternative-id":["10.1111\/all.13113"],"URL":"https:\/\/doi.org\/10.1111\/all.13113","archive":["Portico"],"relation":{},"ISSN":["0105-4538","1398-9995"],"issn-type":[{"value":"0105-4538","type":"print"},{"value":"1398-9995","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,1,17]]}}}