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Asthma Medication Ratio

Endorsement Status
1.1 New or Maintenance
Is Under Review
Next Planned Maintenance Review
Fall 2024
1.3 Measure Description

The percentage of patients 5–64 years of age who were identified as having persistent asthma and had a ratio of controller medications to total asthma medications of 0.50 or greater during the measurement year.

        • 1.5 Measure Type
          1.7 Electronic Clinical Quality Measure (eCQM)
          1.8 Level Of Analysis
          1.20 Testing Data Sources
        • 1.14 Numerator

          The number of patients with persistent asthma who have a ratio of controller medications to total asthma medications of 0.50 or greater during the measurement year.

        • 1.15 Denominator

          All patients 5–64 years of age as of December 31 of the measurement year who have persistent asthma by meeting at least one of the following criteria during both the measurement year and the year prior to the measurement year:
          • At least one emergency department visit with asthma as the principal diagnosis 
          • At least one acute inpatient encounter or discharge with asthma as the principal diagnosis 
          • At least four outpatient visits, observation visits, telephone visits, or online assessments on different dates of service, with any diagnosis of asthma AND at least two asthma medication dispensing events for any controller or reliever medication. Visit type need not be the same for the four visits.
          • At least four asthma medication dispensing events for any controller medication or reliever medication

        • Exclusions

          1) Exclude patients who had any of the following diagnoses any time during the patient’s history through the end of the measurement year (i.e., December 31):
          -Obstructive Chronic Bronchitis
          -Chronic Respiratory Conditions Due To Fumes/Vapors
          -Cystic Fibrosis
          -Acute Respiratory Failure

          2) Exclude any patients who had no asthma medications (controller or reliever) dispensed during the measurement year.

          3) Exclude patients in hospice.

        • OLD 1.12 MAT output not attached
        • Most Recent Endorsement Activity
          Endorsed Primary Care and Chronic Illness Fall Cycle 2019
          Initial Endorsement
          Last Updated
        • Steward Organization Email
          Steward Organization Copyright

          The HEDIS® measures and specifications were developed by and are owned by the National Committee for Quality Assurance (NCQA). The HEDIS measures and specifications are not clinical guidelines and do not establish a standard of medical care. NCQA makes no representations, warranties, or endorsement about the quality of any organization or physician that uses or reports performance measures and NCQA has no liability to anyone who relies on such measures or specifications. NCQA holds a copyright in these materials and can rescind or alter these materials at any time. These materials may not be modified by anyone other than NCQA. Anyone desiring to use or reproduce the materials without modification for a non-commercial purpose may do so without obtaining any approval from NCQA. All commercial uses must be approved by NCQA and are subject to a license at the discretion of NCQA.

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          Calculated measure results, based on unadjusted HEDIS specifications, may not be termed “Health Plan HEDIS rates” until they are audited and designated reportable by an NCQA-Certified Auditor. Such unaudited results should be referred to as “Unaudited Health Plan HEDIS Rates.” Accordingly, “Heath Plan HEDIS rate” refers to and assumes a result from an unadjusted HEDIS specification that has been audited by an NCQA-Certified HEDIS Auditor.

          Limited proprietary coding is contained in the measure specifications for convenience. Users of the proprietary code sets should obtain all necessary licenses from the owners of these code sets. NCQA disclaims all liability for use or accuracy of any coding contained in the specifications.

          Content reproduced with permission from HEDIS, Volume 2: Technical Specifications for Health Plans. To purchase copies of this publication, including the full measures and specifications, contact NCQA Customer Support at 888-275-7585 or visit

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                Risk adjustment approach
                Conceptual model for risk adjustment
                Conceptual model for risk adjustment