Certified Medical Coding Specialist Research & Evidence-Based Practice 2

Question 1

A medical coder reviews a clinical study comparing ICD-10-CM coding accuracy between two hospital systems. This type of study is best classified as which research design?

Accepted Answer

Comparative observational study

Answer

Comparing outcomes between two existing groups without random assignment is an observational comparative study design.

Question 2

Which statistical measure best indicates the consistency of coding decisions made by the same coder at two different times?

Accepted Answer

Intra-rater reliability

Answer

Intra-rater reliability measures how consistently a single coder assigns codes when reviewing the same records at different points in time.

Question 3

A hospital's compliance department wants to evaluate whether a new coding education program reduced CPT unbundling errors. Which metric would be MOST appropriate to measure program impact?

Accepted Answer

Pre- and post-training error rates

Answer

Comparing error rates before and after the intervention directly measures the program's effect on the targeted problem.

Question 4

In evidence-based coding practice, a Level I evidence source would typically be which of the following?

Accepted Answer

Meta-analysis of randomized trials

Answer

Meta-analyses of randomized controlled trials represent the highest level (Level I) in evidence hierarchies.

Question 5

A coder finds conflicting guidance between an AHA Coding Clinic and a payer LCD for the same condition. Which source should take precedence for inpatient hospital coding?

Accepted Answer

AHA Coding Clinic, as the official ICD-10-CM guidance

Answer

AHA Coding Clinic is the official guidance resource for ICD-10-CM/PCS and governs correct code assignment regardless of payer policies.

Certified Medical Coding Specialist Practice Test

Certified Medical Coding Specialist Practice Test

Certified Medical Coding Specialist Research & Evidence-Based Practice 2