Certified Medical Coding Specialist Research & Evidence-Based Practice 3

Question 1

A retrospective chart audit examines 500 records to identify patterns in missed secondary diagnoses. The primary purpose of this audit type in coding research is to:

Accepted Answer

Analyze existing data without altering past records

Answer

Retrospective studies analyze already-existing data, making them efficient for identifying historical patterns without affecting past documentation.

Question 2

Which coding guidance resource should a coder consult to clarify the correct sequencing of diagnoses for a complex inpatient case with multiple comorbidities?

Accepted Answer

AHA Coding Clinic for ICD-10-CM/PCS

Answer

AHA Coding Clinic for ICD-10-CM/PCS provides official guidance on diagnosis sequencing and complex inpatient coding scenarios.

Question 3

A research team calculates the positive predictive value (PPV) of an algorithm that flags potentially miscoded DRGs. PPV measures which of the following?

Accepted Answer

The proportion of algorithm flags that are true errors

Answer

Positive predictive value is the proportion of positive test results (flags) that are true positives (actual errors).

Question 4

A medical coding department implements changes based on a systematic review of coding accuracy studies. This approach exemplifies which practice concept?

Accepted Answer

Evidence-based coding practice

Answer

Applying findings from systematic research to inform coding practices and decisions is the definition of evidence-based coding practice.

Question 5

A chi-square test is used in a coding accuracy study comparing error rates between two facilities. This test is used because the outcome variable is:

Accepted Answer

Categorical (correct vs. incorrect codes)

Answer

Chi-square tests compare distributions of categorical variables, such as whether a code was correct or incorrect.

Certified Medical Coding Specialist Practice Test

Certified Medical Coding Specialist Practice Test

Certified Medical Coding Specialist Research & Evidence-Based Practice 3