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Bariatric Surgery per 100,000 Medicare Enrollees
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    Region
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    Bariatric Surgery per 100,000 Medicare Enrollees
    (Year: 2007-11; Region Levels: State)
    Wyoming 44.8
    Wisconsin 27.5
    West Virginia 27.6
    Washington 33.6
    Virginia 18.5
    Vermont 12.6
    Utah 33.6
    Texas 41.9
    Tennessee 26.5
    South Dakota 33.3
    South Carolina 32.8
    Rhode Island 24.3
    Pennsylvania 35.9
    Oregon 48.5
    Oklahoma 36.0
    Ohio 35.5
    North Dakota 62.7
    North Carolina 20.3
    New York 27.9
    New Mexico 14.5
    New Jersey 38.6
    New Hampshire 18.5
    Nevada 50.1
    Nebraska 46.6
    Montana 44.7
    Missouri 42.3
    Mississippi 26.0
    Minnesota 45.0
    Michigan 48.7
    Massachusetts 35.5
    Maryland 17.3
    Maine 30.8
    Louisiana 36.2
    Kentucky 47.3
    Kansas 31.4
    Iowa 25.7
    Indiana 43.1
    Illinois 26.5
    Idaho 43.7
    Hawaii na
    Georgia 20.1
    Florida 32.1
    District of Columbia 7.3
    Delaware 31.7
    Connecticut 44.3
    Colorado 26.8
    California 27.2
    Arkansas 21.5
    Arizona 30.8
    Alaska 35.8
    Alabama 46.1
    National Average 32.8
    90th Percentile 47.3
    50th Percentile 33.3
    10th Percentile 18.5
        • FOOTNOTES:
        • After establishing our inclusion criteria, we examined the incidence of each event over time between 2001 and 2011. We assessed rates by each year individually. These rates were adjusted for changes in age, sex, and race occurring over time using the population during the year 2001 as the standard population.

        • DENOMINATOR DEFINITION:
        • The denominator consisted of the number of beneficiaries eligible for Medicare Parts A and B as of June 30 for each year (a mid-year denominator).

        • NUMERATOR DEFINITION:
        • Gastric bypass: ICD-9 procedure codes 44.3, 44.31, 44.38, 44.39; CPT codes 43846, 43847, 43644, 43645, 43844, 43659, S2085.
          Adjustable gastric banding: ICD-9 procedure code 44.95; CPT codes 43770, S2082.
          Other procedure: ICD-9 procedure codes 43.89, 43.82, 44.68, 45.51, 45.9; CPT codes 43842, 43843, 43845, 43775.
          All require primary/secondary diagnosis of morbid obesity (ICD-9 codes 278.0, 278.00, 278.01, V77.8) and DRG code for weight loss surgery (DRG 288: MSDRG 619-621)




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    The Dartmouth Atlas of Health Care is based at The Dartmouth Institute for Health Policy and Clinical Practice and is supported by a coalition of funders led by the Robert Wood Johnson Foundation, including the WellPoint Foundation, the United Health Foundation, the California HealthCare Foundation, and the Charles H. Hood Foundation.