Quality Measure Evaluation Walkthrough

This quality evaluation walkthrough will use the following test patient:

denom-cms124-stu3

First, take a look at the Cervical Cancer Screening measure definition as loaded in the server:

Cervical Cancer Screening Measure

The Measure resource specifies the CQL expressions to use for the various population criteria, providing the structure for the measure:

Initial Population

Denominator

Numerator

For the numerator, the measure is looking for the presence of at least one of several types of qualifying tests. For example, evidence of a pap test. This is determined by looking for procedures that have a code in a value set of known pap test result codes:

Pap Test Valueset

This value set is available from terminology servers, and can also be loaded locally for offline evaluation. The request for procedures in this value set for this patient returns no results:

Procedure in the pap test value set

As a result, the patient is in the numerator, as seen in the result of evaluating the measure:

CCS Measure Evaluation

To evaluate the measure for the entire population available on the server, omit the patient parameter:

CCS Measure Evaluation - Population (NOTE: This can take some time...)