Validation of an ICD-9-based claims algorithm for identifying patients with chronic idiopathic/spontaneous urticaria.
BACKGROUND: There is no specific International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) code for chronic idiopathic urticaria or spontaneous urticaria (CIU/CSU), a skin condition characterized by hives and angioedema lasting at least 6 weeks with no known cause. O...
| Publicado en: | Annals of Allergy, Asthma & Immunology Vol. 114; no. 5; pp. 393 - 399 |
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| Autores principales: | , , , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
May2015
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=109785144&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 109785144 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10811206 1FN jtl: Annals of Allergy, Asthma & Immunology issn: 10811206 maglogo: N pubinfo: dt: May2015 vid: 114 iid: 5 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 109785144 2012997317 10.1016/j.anai.2015.02.003 NLM25771155 109785144 ppf: 393 ppct: 6 formats: tig: atl: Validation of an ICD-9-based claims algorithm for identifying patients with chronic idiopathic/spontaneous urticaria. aug: au: Cherepanov, Dasha Raimundo, Karina Chang, Eunice Eagan, Marianne Zazzali, James L Solari, Paul G DeCotiis, Bruce Hussain, Iftikhar Rehman, Syed Maseeh Shahab, Nada Tilles, Stephen A Broder, Michael S sug: subj: Algorithms International Classification of Diseases Urticaria Classification Adult Chronic Disease Female Human Male Predictive Value of Tests Adult: 19-44 years Female Male ab: BACKGROUND: There is no specific International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) code for chronic idiopathic urticaria or spontaneous urticaria (CIU/CSU), a skin condition characterized by hives and angioedema lasting at least 6 weeks with no known cause. OBJECTIVE: To validate an ICD-9-CM-based algorithm for identification of patients with CIU/CSU and thus facilitate claims-based research. METHODS: Patient records were reviewed at 4 US practices. Patients included in the study were from a random sample of those identified by their physician as having CIU/CSU or because they met the following diagnosis-based algorithm: (1) at least 2 outpatient ICD-9-CM diagnosis codes 708.1, 708.8, or 708.9 at least 6 weeks apart or (2) 1 outpatient diagnosis of 708.1, 708.8, or 708.9 and 1 diagnosis of 995.1 at least 6 weeks apart. Data collected included ICD-9-CM codes, diagnoses of urticaria and allergy-related conditions, and medication use. Sensitivity and positive predictive value were calculated. The study was approved by the Western Institutional Review Board. RESULTS: One hundred forty-nine patient records were reviewed (mean age 41.1 years; 73.8% were women; 69.1% were white): 115 were identified with the diagnosis-based algorithm, 90 were patients with 'known CIU/CSU', and 56 were in the 2 groups. The mean duration of CIU/CSU was 2.9 to 3.1 years. The 2 cohorts most frequently had diagnoses of idiopathic urticaria, unspecified urticaria, and other specified urticaria. The diagnosis-based algorithm had a positive predictive value of 90.4% and a sensitivity of 71.1%. CONCLUSION: The high positive predictive value suggests that patients identified using the algorithm are highly likely to have CIU/CSU. The 71.1% sensitivity suggests that most patients with CIU/CSU will be identified. The validation statistics support the use of the diagnosis-based algorithm in claims-based research, although future studies could refine the algorithm further. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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