About This Chapter
This practice assessment covers providing assessment items covering subjects like the Resistance to Antimicrobial Drugs and the Z Codes as First-Listed/Principal Diagnosis. offers a variety of present practice questions with accurate answers, comprehensive explanations, and terminology definitions enhanced with terminology guides and clear concept definitions. Instant answer keys with comprehensive explanations facilitate efficient review and understanding confirmation. The learning outcomes are: Apply diagnosis/procedure codes according to current
Question 1

What is the correct code for pneumococcal sepsis?

  • A40.0
  • A40.1
  • A40.3
  • A40.8
Correct Answer: A40.3
Explanation:

A40.3 is the correct code for pneumococcal sepsis. A40.3: Index>sepsis>pneumococcal.

Glossary:

Sepsis: Condition typified by two or more systemic responses to infection; a specified pathogen.

Question 2

What is the correct code for sepsis due to Enterococcus?

  • A41.51
  • A41.52
  • A41.81
  • A41.82
Correct Answer: A41.81
Explanation:

A41.81 is the correct code for sepsis due to Enterococcus. A41.81: Index>sepsis>Enterococcus.

Glossary:

Sepsis: Condition typified by two or more systemic responses to infection; a specified pathogen.

Question 3

Brad Bradford was brought to the ER for fever and weakness. After work-up, it was determined that Brad had an infection, and he was admitted to the ICU. Lab results show sepsis due to MRSA. The physician treats the patient for sepsis due to MRSA. What is the correct code?

  • A41.02
  • A49.02
  • Z16.20
  • Z16.35
Correct Answer: A41.02
Explanation:

Sepsis due to MRSA is coded with A41.02. A41.02: Index>sepsis>Staphylococcus>aureus>methicillin resistant.

Glossary:

Sepsis: Condition typified by two or more systemic responses to infection; a specified pathogen.

Question 4

Which of the following Z codes can only be used for a principal diagnosis?

  • Z99.0
  • Z99.1
  • Z99.2
  • Z99.12
Correct Answer: Z99.12
Explanation:

Z00.00 is a first-listed diagnosis-only code.

Glossary:

Principal Diagnosis: The condition that is the primary, or main, reason for the encounter.

Question 5

Which of the following Z codes can only be used for a principal diagnosis?

  • Z30.40
  • Z31.81
  • Z34.90
  • Z41.3
Correct Answer: Z31.81
Explanation:

Z31.81 is a first-listed diagnosis-only code.

Glossary:

Principal Diagnosis: The condition that is the primary, or main, reason for the encounter.

Question 6

Which of the following Z codes can only be used for a principal diagnosis?

  • Z04.1
  • Z04.2
  • Z04.3
  • All of these
Correct Answer: All of these
Explanation:

Z38.61 is a first-listed diagnosis-only code.

Glossary:

Principal Diagnosis: The condition that is the primary, or main, reason for the encounter.

Question 7

How many Z codes are permitted to be used only as first-listed diagnosis codes?

  • 10
  • 20
  • 30
  • 40
Correct Answer: 20
Explanation:

There are 20 Z codes that are permitted to be used only as first-listed diagnosis codes.

Glossary:

Diagnosis: A physician’s determination of a patient’s condition, illness, or injury.

Question 8

Which of the following Z codes can only be used for a principal diagnosis?

  • Z75.9
  • Z76.1
  • Z79.891
  • Z80.5
Correct Answer: Z76.1
Explanation:

Z04.1, Z04.2, and Z04.3 are all first-listed diagnosis-only codes.