Indicator Details: Percentage of Patients with a Diagnosis of Hypertension
Data Sources
 
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The prevalence of hypertension by diagnosis code among adult patients increased from 2007 to 2008 and then was fairly stable from 2008 to 2012. The prevalence of hypertension is much lower in older groups, due in part to these people having dual coverage of Medicare and Medicaid. Medicare pays for most health care, but Medicaid pays for long-term-care and home health care services.
Chart Explanation: The chart shows on the y-axis (vertical line) the percentage of adult patients with a diagnosis of hypertension. The x-axis (horizontal line) shows age groups (the block of bars) by year, gender, or race/ethnicity (the individual colored bars).
Data are from the Medicaid datasets of claims (inpatient and outpatient) for Michigan residents from 2007 to 2012. See below for the list of ICD-9-CM or ICD-10-CM diagnostic codes used to determine CKD.

Diagnoses for medical conditions within Medicaid data come from inpatient and outpatient claims submitted by providers for the fee-for-service sections of Medicaid. Only patients aged 20 and older with >3 months Medicaid eligibility were included for the analysis.
FieldData
Description of MeasurePrevalence of clinically diagnosed hypertension (by ICD-9-CM or ICD-10-CM codes).
Data SourceCenters for Medicare and Medicaid Services.
Type of Data SourceAdministrative.
Data SetMedicaid data for Michigan residents.
Health Care System DataYes.
Regional or National?Regional—Michigan State.
Demographic GroupPatients enrolled in Medicaid in Michigan.
NumeratorPatients in denominator with diagnosed hypertension from an outpatient, inpatient or carrier claim.
DenominatorPatients aged 20 years old and older with more than 3 months of Medicaid eligibility in Michigan state.
Primary Data Source IndicatorHypertension status determined by the presence of an ICD-9-CM code (401.x through 405.x) or ICD-10-CM code (H35.03x, I10.xx, I11.xx, I12.xx, I13.xx, I15.xxx, I67.4, N26.2) for hypertension on at least one inpatient, outpatient or carrier claim during the given calendar year.
Primary Indicator Method of MeasurementDiagnoses from inpatient, outpatient, and carrier claims.
Secondary (1) VariableAge at the end of the previous calendar year.
Secondary (2) VariableSex/gender
Period Currently Available2007–2012.
Suggested Citation:
Centers for Disease Control and Prevention. Chronic Kidney Disease Surveillance System—United States.
website. http://www.cdc.gov/ckd