HI 222 Diagnostic Coding FINAL READINESS GUIDE Q & S 2025/2026

1. Question: Which of the following is the primary purpose
of diagnostic coding in healthcare?
 - A) To provide statistical data
 - B) To facilitate billing and reimbursement
 - C) To enhance patient care
 - D) All of the above
 Correct Answer: D) All of the above
 Rationale: Diagnostic coding serves multiple purposes,
including supporting billing processes, contributing to
epidemiological data, and improving patient care through
standardized documentation.
2. Question: Which coding manual is used primarily for
coding diagnoses in inpatient settings?
 - A) CPT
 - B) ICD-10-CM
 - C) ICD-10-PCS
 - D) HCPCS
 Correct Answer: C) ICD-10-PCS
 Rationale: ICD-10-PCS is specifically designed for
inpatient procedure coding, while ICD-10-CM is used for
outpatient diagnoses.
3. Question: The code 'E11.9' corresponds to which of the
following diagnoses?
 - A) Type 1 diabetes without complications
 - B) Type 2 diabetes without complications
 - C) Gestational diabetes
 - D) Unspecified diabetes
 Correct Answer: B) Type 2 diabetes without complications
 Rationale: 'E11.9' specifically relates to Type 2 diabetes
without any associated complications.