WGU C808 OBJECTIVE ASSESSMENT FINAL
NEWEST 2026 ACTUAL EXAM TEST BANK| C808
CLASSIFICATION SYSTEMS OA FINAL EXAM
PREP WITH COMPLETE 300 REAL EXAM
QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADED A+ (MOST
RECENT!!)
Set 1: Questions 1–10
1. Which of the following best describes the primary difference between a
taxonomy and a nomenclature in health information management?
A) A taxonomy organizes concepts hierarchically, while a nomenclature
provides unique identifiers for each concept.
B) A taxonomy is used only for billing, whereas a nomenclature is used only
for research.
C) A taxonomy includes only diagnoses, while a nomenclature includes only
procedures.
D) A taxonomy is always numeric, while a nomenclature is always
alphanumeric.
Correct Answer: A
Rationale: Taxonomies arrange concepts in hierarchical parent-child
relationships (e.g., ICD-10-CM chapters, blocks, codes). Nomenclatures
assign distinct names or codes to each concept without necessarily implying
hierarchy (e.g., SNOMED CT).
2. Which coding system is specifically designed for documenting laboratory
tests and clinical observations?
,A) SNOMED CT
B) CPT
C) LOINC
D) ICD-10-PCS
Correct Answer: C
Rationale: LOINC (Logical Observation Identifiers Names and Codes)
standardizes laboratory test names and clinical observations across
healthcare systems.
3. A patient is diagnosed with essential hypertension and chronic kidney
disease stage 4. What is the correct coding principle?
A) Code hypertension and CKD as separate codes with no sequencing
requirement.
B) Code hypertension first, then CKD.
C) Code CKD first, then hypertension.
D) Use a combination code for hypertensive CKD.
Correct Answer: D
Rationale: ICD-10-CM has combination codes for hypertensive chronic
kidney disease (I12.-). The CKD stage is added with a fifth digit or additional
code. This follows Official Guidelines for Coding and Reporting (Section
I.C.9).
4. An Excludes1 note under a code in the Tabular List indicates:
A) The two conditions can be coded together if the physician documents
both.
B) The two conditions are mutually exclusive and cannot be coded together.
C) The excluded code should be used as a secondary diagnosis.
D) The coder must query the physician for clarification.
,Correct Answer: B
Rationale: Excludes1 means "not coded here" – the condition is not part of
the code's definition and the two codes should never be used together. This
is a fundamental ICD-10-CM guideline.
5. Which electronic application assigns a unique identifier so that each
individual upon registration is represented only once across all the
organization's systems?
A) Health information exchange (HIE)
B) Master patient index (MPI)
C) Continuity of care document (CCD)
D) Electronic health record (EHR)
Correct Answer: B
Rationale: The Master Patient Index (MPI) assigns unique identifiers to
patients to ensure they are registered only once across all systems. Patient
identity management relies on accurate MPI data.
6. The seventh character "S" in ICD-10-CM stands for:
A) Subsequent encounter
B) Sequela (late effect)
C) Surgical site infection
D) Screening
Correct Answer: B
Rationale: "S" is used for sequela (late effects of a condition, e.g., scar after a
burn). "D" is subsequent encounter, "A" is initial encounter.
7. What does the abbreviation "NEC" indicate in the Alphabetic Index?
, A) No diagnosis code exists for the condition.
B) A more specific code exists but the documentation does not provide
enough detail.
C) The condition is not included in the chapter.
D) The coder should use an unspecified code.
Correct Answer: B
Rationale: NEC (Not Elsewhere Classifiable) means a more specific code is
available elsewhere, but the documentation lacks detail to assign it. This
differs from NOS (unspecified).
8. A patient has type 2 diabetes with diabetic neuropathy and diabetic
retinopathy. How many codes are required?
A) One combination code for diabetes with multiple manifestations.
B) Two codes: one for diabetes, one for neuropathy and retinopathy
combined.
C) Three codes: diabetes, neuropathy, and retinopathy.
D) One code for diabetes only; manifestations are implied.
Correct Answer: C
Rationale: Diabetes with multiple manifestations requires the diabetes code
(E11.-) plus a separate code for each manifestation (E11.40 for neuropathy,
E11.31 for retinopathy). Each manifestation must be coded separately.
9. Which system assists doctors with providing current clinical guidelines or
supplying reminders and alerts?
A) Clinical decision support (CDS)
B) Computerized physician order entry (CPOE)
C) Electronic medication administration record (EMAR)
D) Electronic prescribing (e-Rx)
NEWEST 2026 ACTUAL EXAM TEST BANK| C808
CLASSIFICATION SYSTEMS OA FINAL EXAM
PREP WITH COMPLETE 300 REAL EXAM
QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADED A+ (MOST
RECENT!!)
Set 1: Questions 1–10
1. Which of the following best describes the primary difference between a
taxonomy and a nomenclature in health information management?
A) A taxonomy organizes concepts hierarchically, while a nomenclature
provides unique identifiers for each concept.
B) A taxonomy is used only for billing, whereas a nomenclature is used only
for research.
C) A taxonomy includes only diagnoses, while a nomenclature includes only
procedures.
D) A taxonomy is always numeric, while a nomenclature is always
alphanumeric.
Correct Answer: A
Rationale: Taxonomies arrange concepts in hierarchical parent-child
relationships (e.g., ICD-10-CM chapters, blocks, codes). Nomenclatures
assign distinct names or codes to each concept without necessarily implying
hierarchy (e.g., SNOMED CT).
2. Which coding system is specifically designed for documenting laboratory
tests and clinical observations?
,A) SNOMED CT
B) CPT
C) LOINC
D) ICD-10-PCS
Correct Answer: C
Rationale: LOINC (Logical Observation Identifiers Names and Codes)
standardizes laboratory test names and clinical observations across
healthcare systems.
3. A patient is diagnosed with essential hypertension and chronic kidney
disease stage 4. What is the correct coding principle?
A) Code hypertension and CKD as separate codes with no sequencing
requirement.
B) Code hypertension first, then CKD.
C) Code CKD first, then hypertension.
D) Use a combination code for hypertensive CKD.
Correct Answer: D
Rationale: ICD-10-CM has combination codes for hypertensive chronic
kidney disease (I12.-). The CKD stage is added with a fifth digit or additional
code. This follows Official Guidelines for Coding and Reporting (Section
I.C.9).
4. An Excludes1 note under a code in the Tabular List indicates:
A) The two conditions can be coded together if the physician documents
both.
B) The two conditions are mutually exclusive and cannot be coded together.
C) The excluded code should be used as a secondary diagnosis.
D) The coder must query the physician for clarification.
,Correct Answer: B
Rationale: Excludes1 means "not coded here" – the condition is not part of
the code's definition and the two codes should never be used together. This
is a fundamental ICD-10-CM guideline.
5. Which electronic application assigns a unique identifier so that each
individual upon registration is represented only once across all the
organization's systems?
A) Health information exchange (HIE)
B) Master patient index (MPI)
C) Continuity of care document (CCD)
D) Electronic health record (EHR)
Correct Answer: B
Rationale: The Master Patient Index (MPI) assigns unique identifiers to
patients to ensure they are registered only once across all systems. Patient
identity management relies on accurate MPI data.
6. The seventh character "S" in ICD-10-CM stands for:
A) Subsequent encounter
B) Sequela (late effect)
C) Surgical site infection
D) Screening
Correct Answer: B
Rationale: "S" is used for sequela (late effects of a condition, e.g., scar after a
burn). "D" is subsequent encounter, "A" is initial encounter.
7. What does the abbreviation "NEC" indicate in the Alphabetic Index?
, A) No diagnosis code exists for the condition.
B) A more specific code exists but the documentation does not provide
enough detail.
C) The condition is not included in the chapter.
D) The coder should use an unspecified code.
Correct Answer: B
Rationale: NEC (Not Elsewhere Classifiable) means a more specific code is
available elsewhere, but the documentation lacks detail to assign it. This
differs from NOS (unspecified).
8. A patient has type 2 diabetes with diabetic neuropathy and diabetic
retinopathy. How many codes are required?
A) One combination code for diabetes with multiple manifestations.
B) Two codes: one for diabetes, one for neuropathy and retinopathy
combined.
C) Three codes: diabetes, neuropathy, and retinopathy.
D) One code for diabetes only; manifestations are implied.
Correct Answer: C
Rationale: Diabetes with multiple manifestations requires the diabetes code
(E11.-) plus a separate code for each manifestation (E11.40 for neuropathy,
E11.31 for retinopathy). Each manifestation must be coded separately.
9. Which system assists doctors with providing current clinical guidelines or
supplying reminders and alerts?
A) Clinical decision support (CDS)
B) Computerized physician order entry (CPOE)
C) Electronic medication administration record (EMAR)
D) Electronic prescribing (e-Rx)
