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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)
    Alabama 46.1
    Alaska 35.8
    Arizona 30.8
    Arkansas 21.5
    California 27.2
    Colorado 26.8
    Connecticut 44.3
    Delaware 31.7
    District of Columbia 7.3
    Florida 32.1
    Georgia 20.1
    Hawaii na
    Idaho 43.7
    Illinois 26.5
    Indiana 43.1
    Iowa 25.7
    Kansas 31.4
    Kentucky 47.3
    Louisiana 36.2
    Maine 30.8
    Maryland 17.3
    Massachusetts 35.5
    Michigan 48.7
    Minnesota 45.0
    Mississippi 26.0
    Missouri 42.3
    Montana 44.7
    Nebraska 46.6
    Nevada 50.1
    New Hampshire 18.5
    New Jersey 38.6
    New Mexico 14.5
    New York 27.9
    North Carolina 20.3
    North Dakota 62.7
    Ohio 35.5
    Oklahoma 36.0
    Oregon 48.5
    Pennsylvania 35.9
    Rhode Island 24.3
    South Carolina 32.8
    South Dakota 33.3
    Tennessee 26.5
    Texas 41.9
    Utah 33.6
    Vermont 12.6
    Virginia 18.5
    Washington 33.6
    West Virginia 27.6
    Wisconsin 27.5
    Wyoming 44.8
    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.