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ICD-10-CM Tabular Ch.1-3 Exam Practice
Questions and Answers
Which of the following are pathogenic microorganisms? Select all that apply.
A. Viruses
B. Mosquitoes
C. Fungi
D. Rats
E. Ticks
F. Gram-positive bacteria - ANSWER✔✔-correct answer: A,C,F
Pathogenic microorganisms are living agents of microscopic size that enter a host, such as a human or
animal, and cause disease. Bacteria, viruses, parasites, and fungi are pathogenic microorganisms.
A patient is admitted 1 week after birth and diagnosed with "infant botulism," a disease due to
Clostridium botulinum. Which code(s) is (are) assigned?
A. P36.8, B96.89
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B. A48.51, B96.7
C. P37.8
D. A48.51 - ANSWER✔✔-correct answer: D
Assign code A48.51, Infant botulism.
Refer to the coding notes with B20. Which of the diagnoses below are correctly assigned to B20? Select
all that apply.
A. HIV infection, symptomatic
B. AIDS-related complex
C. Exposure to HIV virus
D. Acquired immune deficiency syndrome
E. Asymptomatic human immunodeficiency virus
[HIV] infection status
F. Inconclusive serologic evidence of HIV - ANSWER✔✔-correct answer: A,B,D
According to the Includes and Excludes Notes with code B20, HIV infection, symptomatic; AIDS-related
complex; and acquired immune deficiency syndrome are reported with this code. Exposure to HIV virus
is reported with code Z20.6.
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Prion infections progress rapidly and are always fatal. Which condition is a prion disease?
A. Creutzfeldt-Jakob disease
B. Cat scratch fever
C. Lyme disease
D. Haemophilus influenzae - ANSWER✔✔-correct answer: A
Diseases caused by prions are also called transmissible spongiform encephalopathies (TSEs). An example
of a prion infection is A81.00, Creutzfeldt-Jakob disease.
A patient recently arrived in the United States from abroad. He is admitted with complaints of cough,
fever, chills, malaise, and anorexia. His cough has an inspiratory "whoop." His temperature is 100.6; his
WBC count is 15,000. A chest x-ray reveals a right lower lung infiltrate. Following treatment with
erythromycin, the infiltrate and cough become less severe. He is discharged with a diagnosis of
whooping cough with secondary pneumonia. What is the correct coding and/or sequence of codes for
this case?
A. A37.90, J18.9
B. A37.81
C. J18.9, A37.81
D. A37.91 - ANSWER✔✔-correct answer: D
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The main term is Whooping cough, and the subterm is "with pneumonia" (A37.91). The type of
pneumonia is not specified.
A patient is admitted with fever, headache, weakness, and confusion. A CBC, head CT, and lumbar
puncture are performed. She is diagnosed with West Nile fever with encephalitis. What is the coding for
this diagnosis?
A. A83.9
B. A92.31
C. A92.31, G04.00
D. A92.30 - ANSWER✔✔-correct answer: B
The correct coding would be Fever, West, Nile (viral), with, encephalitis (A92.31).
What is the correct coding and sequencing for a diagnosis of enterococcal sepsis with acute kidney
failure?
A. R65.20, N17.9
B. A41.81, R65.20, N17.9
C. R65.20, N17.9, A41.81
D. A41.81, R65.20 - ANSWER✔✔-correct answer: B
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