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. 2017 May 16;9:271–279. doi: 10.2147/CEOR.S130992

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© 2017 Knight et al. This work is published and licensed by Dove Medical Press Limited

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Patient attrition.

Notes: ^aICD-9-CM codes of 710.3 or 710.4. ^bRCI is identified with patients having NDC codes of either 63004-7731-01 or 63004-8710-01 or an HCPCS code for corticotropin injection (J0800).

Abbreviations: RCI, adrenocorticotropic hormone; DM, dermatomyositis; IVIg, intravenous immunoglobulin; PM, polymyositis; ICD-9-CM, International Classifications of Diseases, Ninth Revision, Clinical Modification; NDC, National Drug Codes; HCPCS, Healthcare Common Procedure Coding System.