CHDA Exam Study Guide with Complete
Solutions
MS-DRGs - Medical severity diagnosis-related groups (MS-DRGs - Answer-
represent an inpatient prospective payment system implemented by the CMS to
reimburse hospitals a predetermined amount for services provided to inpatients...can be
grouped in ca...
requirements of this process is the existence of a cancer registry as part of the program
- Answer✔✔-The American College of Surgeons (ACS)
The barrier to adopting SNOMED CT for healthcare facility coding - Answer✔✔-too
complex to use as a reimbursement coding system
Clinical Data warehouses - Answer✔✔-primarily used for outcomes management and
data analysis
(GEMs) General Equivalence Mappings - Answer✔✔-mapping of ICD-9-CM and ICD-
10-CM/PCS
First Normal Form - Answer✔✔-§ a. Eliminate repeating groups in individual tables
§ b. Create a separate table for each set of related data
§ c. Identify each set of related data with a primary key
Second Normal Form - Answer✔✔-§ a. Create separate tables for sets of values that
apply to multiple records
b. Relate these tables with a foreign key
Third Normal Form - Answer✔✔-a. Eliminate fields that do not depend on the key
concepts are linked together are called a relationship - Answer✔✔-SNOWMED-CT
codes
POA (Present on admission) coding - Answer✔✔-verifying this data element can only
be done by the physician that has seen the patient
One-sample Z-test for proportions - Answer✔✔-test statistic used to compare a
proportion to a standard
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