Medicare claims data reliably identify treatments for basal cell carcinoma and squamous cell carcinoma: a prospective cohort study

Abstract Objective: To investigate the accuracy of Medical Benefit Schedule (MBS) item numbers to identify treatments for basal cell carcinomas (BCC) and squamous cell carcinomas (SCC). Methods: We linked records from QSkin Study participants (n=37,103) to Medicare. We measured the proportion of Med...

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Main Authors: Bridie S. Thompson, Catherine M. Olsen, Padmini Subramaniam, Rachel E. Neale, David C. Whiteman
Format: Article
Language:English
Published: Elsevier 2016-04-01
Series:Australian and New Zealand Journal of Public Health
Subjects:
Online Access:https://doi.org/10.1111/1753-6405.12478
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author Bridie S. Thompson
Catherine M. Olsen
Padmini Subramaniam
Rachel E. Neale
David C. Whiteman
author_facet Bridie S. Thompson
Catherine M. Olsen
Padmini Subramaniam
Rachel E. Neale
David C. Whiteman
author_sort Bridie S. Thompson
collection DOAJ
description Abstract Objective: To investigate the accuracy of Medical Benefit Schedule (MBS) item numbers to identify treatments for basal cell carcinomas (BCC) and squamous cell carcinomas (SCC). Methods: We linked records from QSkin Study participants (n=37,103) to Medicare. We measured the proportion of Medicare claims for primary excision of BCC/SCC that had corresponding claims for histopathology services. In subsets of participants, we estimated the sensitivity and external concordance of MBS item numbers for identifying BCC/SCC diagnoses by comparing against ‘gold‐standard’ histopathology reports. Results: A total of 2,821 (7.6%) participants had 4,830 separate Medicare claims for BCC/SCC excision; almost all (97%) had contemporaneous Medicare claims for histopathology services. Among participants with BCC/SCC confirmed by histology reports, 76% had a corresponding Medicare claim for primary surgical excision of BCC/SCC. External concordance for Medicare claims for primary BCC/SCC excision was 68%, increasing to 97% when diagnoses for intra‐epidermal carcinomas and keratoacanthomas were included. Conclusions: MBS item numbers for primary excision of BCC/SCC are reasonably reliable for determining incident cases of keratinocyte skin cancers, but may underestimate incidence by up to 24%. Implications: Medicare claims data may have utility in monitoring trends in conditions for which there is no mandatory reporting.
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spelling doaj.art-b94169bd5ad2436a8a4f261285acc8572023-09-02T22:45:31ZengElsevierAustralian and New Zealand Journal of Public Health1326-02001753-64052016-04-0140215415810.1111/1753-6405.12478Medicare claims data reliably identify treatments for basal cell carcinoma and squamous cell carcinoma: a prospective cohort studyBridie S. Thompson0Catherine M. Olsen1Padmini Subramaniam2Rachel E. Neale3David C. Whiteman4Cancer Control Group QIMR Berghofer Medical Research Institute QueenslandCancer Control Group QIMR Berghofer Medical Research Institute QueenslandCancer Aetiology and Prevention QIMR Berghofer Medical Research Institute QueenslandCancer Aetiology and Prevention QIMR Berghofer Medical Research Institute QueenslandCancer Control Group QIMR Berghofer Medical Research Institute QueenslandAbstract Objective: To investigate the accuracy of Medical Benefit Schedule (MBS) item numbers to identify treatments for basal cell carcinomas (BCC) and squamous cell carcinomas (SCC). Methods: We linked records from QSkin Study participants (n=37,103) to Medicare. We measured the proportion of Medicare claims for primary excision of BCC/SCC that had corresponding claims for histopathology services. In subsets of participants, we estimated the sensitivity and external concordance of MBS item numbers for identifying BCC/SCC diagnoses by comparing against ‘gold‐standard’ histopathology reports. Results: A total of 2,821 (7.6%) participants had 4,830 separate Medicare claims for BCC/SCC excision; almost all (97%) had contemporaneous Medicare claims for histopathology services. Among participants with BCC/SCC confirmed by histology reports, 76% had a corresponding Medicare claim for primary surgical excision of BCC/SCC. External concordance for Medicare claims for primary BCC/SCC excision was 68%, increasing to 97% when diagnoses for intra‐epidermal carcinomas and keratoacanthomas were included. Conclusions: MBS item numbers for primary excision of BCC/SCC are reasonably reliable for determining incident cases of keratinocyte skin cancers, but may underestimate incidence by up to 24%. Implications: Medicare claims data may have utility in monitoring trends in conditions for which there is no mandatory reporting.https://doi.org/10.1111/1753-6405.12478Medicarebasal cell carcinomasquamous cell carcinomakeratinocyte cancersMedical Benefits Schemesensitivity
spellingShingle Bridie S. Thompson
Catherine M. Olsen
Padmini Subramaniam
Rachel E. Neale
David C. Whiteman
Medicare claims data reliably identify treatments for basal cell carcinoma and squamous cell carcinoma: a prospective cohort study
Australian and New Zealand Journal of Public Health
Medicare
basal cell carcinoma
squamous cell carcinoma
keratinocyte cancers
Medical Benefits Scheme
sensitivity
title Medicare claims data reliably identify treatments for basal cell carcinoma and squamous cell carcinoma: a prospective cohort study
title_full Medicare claims data reliably identify treatments for basal cell carcinoma and squamous cell carcinoma: a prospective cohort study
title_fullStr Medicare claims data reliably identify treatments for basal cell carcinoma and squamous cell carcinoma: a prospective cohort study
title_full_unstemmed Medicare claims data reliably identify treatments for basal cell carcinoma and squamous cell carcinoma: a prospective cohort study
title_short Medicare claims data reliably identify treatments for basal cell carcinoma and squamous cell carcinoma: a prospective cohort study
title_sort medicare claims data reliably identify treatments for basal cell carcinoma and squamous cell carcinoma a prospective cohort study
topic Medicare
basal cell carcinoma
squamous cell carcinoma
keratinocyte cancers
Medical Benefits Scheme
sensitivity
url https://doi.org/10.1111/1753-6405.12478
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