Question 1

A homeless man presented to the ER with skin ulcers of the right calf of the leg that are infested with cutaneous maggots.

Accepted Answer

The correct diagnosis code for cutaneous myiasis (maggot infestation) of the right calf is B87.0. The additional code L97.219 is also necessary to indicate the skin ulcer. The code Z59.0 is necessary to indicate the patient's homelessness, as it is an important social determinant of health that can affect the course of treatment and management of the patient's condition. The code B87.8 is incorrect as it is for other specified myiasis, whereas the question specifically states that the infestation is cutaneous. The code B87.1 is also incorrect as it is for furuncular myiasis, which is a specific type of myiasis that does not match the description provided in the question.

Question 2

Patient has elevated liver function tests and was diagnosed with viral hepatitis C.

Accepted Answer

B19.20 is the ICD-10 code for unspecified viral hepatitis C without hepatic coma, which is appropriate for a diagnosis of viral hepatitis C when the state of hepatic coma is not mentioned.

Question 3

A patient was admitted to the hospital with fever,cough,and low blood pressure.CXR shows infiltrates,and sputum culture is positive for MRSA.The discharge summary indicates that the patient was admitted and was given IV antibiotics for MRSA pneumonia.

Accepted Answer

The answer of A patient was admitted to the hospital...

Question 4

____________________,or shingles,is a disease caused by the same virus that causes chickenpox.

Accepted Answer

The answer of ____________________,or shingles,is a disease caused by the...

Question 5

The patient was admitted with septic shock and acute renal failure caused by a UTI due to Escherichia coli.Discharge summary states sepsis due to Escherichia coli.

Accepted Answer

A41.51 (Sepsis due to Escherichia coli), N39.0 (Urinary tract infection, site not specified), R65.21 (Severe sepsis) and N17.9 (Acute kidney failure, unspecified) are the appropriate diagnosis codes for the patient's condition.

Question 6

____________________ is found as white plaques on the lips,inner cheeks,or tongue.It is seen in babies,people with cancer,and diabetics.

Accepted Answer

The answer of ____________________ is found as white plaques on...

Question 7

Infectious diseases are characterized often by a disease code and an organism code.When this occurs,it is appropriate to use two codes.

Accepted Answer

Infectious diseases are often characterized by a disease code and an organism code, so it is appropriate to use two codes.

Question 8

Category A00-A09 contains codes for ____________________.

Accepted Answer

The answer of Category A00-A09 contains codes for ____________________....

Question 9

Code B20 is NEVER used once a patient develops AIDS.

Accepted Answer

Code B20 is still used after a patient develops AIDS to indicate HIV infection resulting in the development of AIDS.

Question 10

A patient was admitted with a diagnosis of urosepsis.Urine and blood cultures were performed on admittance.Blood cultures came back positive for Escherichia coli.Discharge summary documents sepsis due to Escherichia coli.Urinary tract infection.

Accepted Answer

A41.51 is the ICD-10 code for Sepsis due to Escherichia coli (E. coli), which is the primary diagnosis given the patient's condition of sepsis caused by E. coli as indicated by the blood cultures. N39.0 is the ICD-10 code for Urinary tract infection, unspecified, which is appropriate given the diagnosis of urosepsis, indicating a UTI that has led to sepsis.

Question 11

TB stands for ____________________.

Accepted Answer

The answer of TB stands for ____________________....

Question 12

Category B20 is assigned for ____________________.

Accepted Answer

The answer of Category B20 is assigned for ____________________....

Question 13

A patient was admitted to the hospital with jaundice and elevated liver function tests.Upon discharge,the physician documents jaundice due to acute Hepatitis B.

Accepted Answer

The correct code for acute Hepatitis B without delta-agent and without hepatic coma is B16.9. Jaundice is a symptom of the condition and is not coded separately when it is integral to the condition.

Question 14

Z21 is a code used for patients with HIV who have no symptoms and who have never had an AIDS-defining illness.

Accepted Answer

Z21 is a code used for patients with HIV who have no symptoms and who have never had an AIDS-defining illness.

Question 15

A patient known to be positive for HIV is admitted to the hospital with high fever,malaise,and cough.PCP pneumonia is suspected and is ruled out.Tests reveal that the patient has infectious mononucleosis.

Accepted Answer

B20 is the code for HIV and B59 is the code for infectious mononucleosis. Since the patient was initially suspected to have PCP pneumonia due to their HIV status, it would be appropriate to include both B20 and B59 codes. However, since further tests ruled out PCP pneumonia, only the B59 code would be necessary. Additionally, the Z21 code should be included to indicate that the patient is positive for HIV but does not have any current opportunistic infections. The B27.90 code is not necessary as it is for unspecified infectious mononucleosis, whereas the patient's diagnosis is confirmed to be infectious mononucleosis.

Question 16

The patient was admitted with septic shock.Blood cultures were positive for coagulase-negative Staphylococcus.Patient was also treated for pneumonia.BAL was performed (right middle lobe bronchus).Physician documents sepsis due to coagulase-negative Staphylococcus.Pneumonia.

Accepted Answer

The answer of The patient was admitted with septic shock.Blood...

Question 17

A patient is admitted to the hospital with severe diarrhea.Upon examination,the patient is found to be severely dehydrated.She is given IV fluids to correct the hydration.In the assessment,the physician suspects gastroenteritis.After stool cultures,it is determined that the patient has Clostridium difficile colitis.

Accepted Answer

The patient's diagnosis is Clostridium difficile colitis, which is coded as A04.7. The severe dehydration is also mentioned, and it is treated with IV fluids, which is not a condition but a treatment. Therefore, the only other code needed is E86.0 for dehydration. R19.7 (diarrhea) and K52.9 (noninfective gastroenteritis) are not necessary in this scenario.

Question 18

Patient was admitted with difficulty swallowing.EGD showed esophageal candidiasis.Patient is HIV positive.

Accepted Answer

- B20 (HIV disease) is necessary to indicate the patient's underlying condition.
- B37.81 (Candidal esophagitis) is the code for the condition that has been diagnosed.
- 0DJ08ZZ (Esophagoscopy, upper, with or without biopsy) is the procedure code for EGD (Esophagogastroduodenoscopy).
- Therefore, option C (B20,B37.81,0DJ08ZZ) is the best choice as it covers all the necessary codes.

Question 19

If sepsis is present on admission and meets the definition of principal diagnosis,the systemic infection code should be assigned as the principal diagnosis.

Accepted Answer

According to the Official Coding Guidelines for FY 2021, when sepsis is present on admission and meets the definition of principal diagnosis, it should be sequenced first as the principal diagnosis.

Question 20

According to ICD-10-CM Guidelines,it is not necessary to identify infections documented as antibiotic resistant.

Accepted Answer

It is necessary to identify infections documented as antibiotic resistant in order to accurately code the infection and notify appropriate public health authorities.

Quiz 9: Certain Infectious and Parasitic Diseases

A homeless man presented to the ER with skin ulcers of the right calf of the leg that are infested with cutaneous maggots.

Patient has elevated liver function tests and was diagnosed with viral hepatitis C.

A patient was admitted to the hospital with fever,cough,and low blood pressure.CXR shows infiltrates,and sputum culture is positive for MRSA.The discharge summary indicates that the patient was admitted and was given IV antibiotics for MRSA pneumonia.

____________________,or shingles,is a disease caused by the same virus that causes chickenpox.

The patient was admitted with septic shock and acute renal failure caused by a UTI due to Escherichia coli.Discharge summary states sepsis due to Escherichia coli.

____________________ is found as white plaques on the lips,inner cheeks,or tongue.It is seen in babies,people with cancer,and diabetics.

Infectious diseases are characterized often by a disease code and an organism code.When this occurs,it is appropriate to use two codes.

Category A00-A09 contains codes for ____________________.

Code B20 is NEVER used once a patient develops AIDS.

A patient was admitted with a diagnosis of urosepsis.Urine and blood cultures were performed on admittance.Blood cultures came back positive for Escherichia coli.Discharge summary documents sepsis due to Escherichia coli.Urinary tract infection.

TB stands for ____________________.

Category B20 is assigned for ____________________.

A patient was admitted to the hospital with jaundice and elevated liver function tests.Upon discharge,the physician documents jaundice due to acute Hepatitis B.

Z21 is a code used for patients with HIV who have no symptoms and who have never had an AIDS-defining illness.

A patient known to be positive for HIV is admitted to the hospital with high fever,malaise,and cough.PCP pneumonia is suspected and is ruled out.Tests reveal that the patient has infectious mononucleosis.

The patient was admitted with septic shock.Blood cultures were positive for coagulase-negative Staphylococcus.Patient was also treated for pneumonia.BAL was performed (right middle lobe bronchus) .Physician documents sepsis due to coagulase-negative Staphylococcus.Pneumonia.

Patient was admitted with difficulty swallowing.EGD showed esophageal candidiasis.Patient is HIV positive.

If sepsis is present on admission and meets the definition of principal diagnosis,the systemic infection code should be assigned as the principal diagnosis.

According to ICD-10-CM Guidelines,it is not necessary to identify infections documented as antibiotic resistant.