Answer Rationales for ICD-10-CM Coding Chapter 3 Quiz - Diseases of Blood and Blood -Forming Organs
Chapter 3 Quiz - Diseases of Blood and Blood -Forming Organs
Questions/Answers
1. Classical hemophilia
Correct answer: D66
2. Anemia due to CKD
Correct answer: N18.9, D63.1
3. Pancytopenia due to chemotherapy
Correct answer: D61.810, T45.1X5A
4. Anemia due to primary liver cancer
Correct answer: C22.8, D63.0
5. Postoperative anemia due to acute blood loss
Correct answer: D62
6. A patient is admitted for treatment of erythropoietin-resistant anemia due to stage 2 chronic kidney disease
Correct answer: N18.2, D63.1
7. Anemia, hypochromic, microcytic, with iron deficiency due to blood loss
Correct answer: D50.0
8. Aplastic anemia due to infection
Correct answer: D61.2
9. Patient presents with persistent heparin-induced thrombocytopenia.
Correct answer: D75.828, T45.515A
10. Sickle-cell crisis with acute chest syndrome
Correct answer: D57.01
Chapter 3 Quiz - Diseases of Blood and Blood -Forming Organs
Rationales
Question 1
Rationale: Alphabetic Index: Hemophilia (classical) > D66 Verify code selection in the Tabular List.
Question 2
Rationale: Alphabetic Index: Anemia > In (due to) (with) > Chronic kidney disease > D63.1
In the Tabular List, at D63.1, there is an instructional note stating to code first underlying chronic kidney disease.
Alphabetic Index for Disease > Kidney > Chronic > N18.9. Verify code selection in the Tabular List.
When coding an adverse effect of a drug that has been correctly prescribed and properly administered, assign the appropriate code for the nature of the adverse effect followed by the appropriate code for the adverse effect of the drug (T36-T50). The code for the drug should have a 5th or 6th character “5” (for example T36.0X5-) Examples of the nature of an adverse effect are tachycardia, delirium, gastrointestinal hemorrhaging, vomiting, hypokalemia, hepatitis, renal failure, or respiratory failure.
Question 3
Rationale: Alphabetic Index: Pancytopenia > Antineoplastic chemotherapy induced > D61.810 Verify code selection in the Tabular List.
If the chemo is administered correctly, this would be considered an adverse effect.
Table of drugs and chemicals: Substance > Antineoplastic NEC > T45.1X1A
Question 4
Rationale:
Alphabetic Index: Anemia > In > Neoplastic Disease > D63.0 - (Check tabular for final digit)
Primary Liver Cancer: Look in the ICD-10-CM Table of Neoplasms for liver > Use the code from the Primary Malignancy Column, which directs the coder to C22.8. Verify code selection in the Tabular List.
Note: D63.0 is sequenced first, as per neoplasm guidelines and a Code First Note at D63.0, “Code First Neoplasm.”
Question 5
Rationale:
Rationale: Alphabetic Index: Anemia > Postoperative (postprocedural) > due to (acute) blood loss > D62. Verify code selection in the Tabular List.
Question 6
Rationale:
ICD-10-CM Alphabetic Index: Anemia > in (due to) (with) > chronic kidney disease or Anemia/erythropoietin resistant anemia (EPO resistant anemia) > D63.1.
In the Tabular List, at D63.1, there is an instructional note stating to code first underlying chronic kidney disease.
Alphabetic Index for Disease > Kidney > Chronic > Stage 2 (mild) > N18.2. Verify code selection in the Tabular List.
Question 7
Rationale:
Alphabetic Index: Anemia > hypochromic (microcytic) > due to blood loss (chronic) > D50.0 Verify code selection in the Tabular List.
Note: The terms microcytic and chronic are nonessential modifiers since they are in parenthesis.
Question 8
Rationale:
Alphabetic Index: Anemia > Aplastic > Due to > Infection > D61.2 Verify code selection in the Tabular List.
Question 9
Rationale: Alphabetic Index: Thrombocytopenia > Heparin Induced (HIT) > Persistent > D75.828 Verify code selection in the Tabular List.
There is a “Use Additional Code” note in tabular that states, “Use Additional Code, if applicable, for adverse effect of heparin) T45.515-
Question 10
Rationale: Alphabetic Index: Crisis > Sickle Cell > With > Acute Chest Syndrome > D57.01
Or Alphabetic Index: Disease > Sickle Cell > With > Acute Chest Syndrome > D57.01
Verify code selection in the Tabular List.
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