COL Measure Walkthrough

This quality evaluation walkthrough will use the following test patient:

Patient-406

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

Colorectal Cancer Screening Measure

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

Initial Population

Numerator

For the numerator, the measure is looking for evidence of a colorectal cancer screening. This is determined by looking for various types of screening procedures and tests, such as FOBT, that have a code in a value set of known FOBT observation codes:

FOBT Value Set

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 results:

Procedure in the FOBT value set

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

COL Measure Evaluation