CCA PRACTICE
QUESTIONS AND
CORRECT ANSWERS
GRADED A+ 2025-2026
ANSWER KEY DOMAIN 1
Identify the diagnosis code(s) for carcinoma in situ of vocal cord.
a.D02.0
b.C32.0
c.D49.1
d.D14.1 - ANS-. a. Index Carcinoma, in situ, see also Neoplasm, by site, in situ
(Schraffenberger 2018, 137, 145).
Identify the diagnosis code(s) for melanoma of skin of right shoulder.
a.D03.61, C43.61
b.C43.61
c.C43.60
d.D03.61 - ANS-b. index Melanoma (malignant), shoulder. Melanoma is considered a
malignant neoplasm and is referenced as such in the index of ICD-10-CM. The term
"benign neoplasm" is considered a growth that does not invade adjacent structures or
spread to distant sites but may displace or exert pressure on adjacent structures
(Schraffenberger 2018, 137, 145).
Which of the following organizations is responsible for updating the procedure
classification of ICD-10-PCS?
a.Centers for Disease Control (CDC)
,b.Centers for Medicare and Medicaid Services (CMS)
c.National Center for Health Statistics (NCHS)
d.World Health Organization (WHO) - ANS-b. CMS is responsible for updating the
procedure classification (ICD-10-PCS) (Giannangelo 2016, 124).
"Code, if applicable, on causal condition first," note indicates that this code may be
assigned as a first listed or principal diagnosis when:
a.the causal condition is a symptom code
b.the code for the condition is unrelated to the causal condition
c.the causal condition is unknown or not applicable
d.the code appears in italicized font - ANS-c. "Causal condition first" general coding
guideline states, "this code may be assigned as principal diagnosis when the causal
condition is unknown or not specified." (CMS, CG7, 2019).
Which character in an ICD-10-CM diagnosis code provides information regarding
encounter of care?
a.Fourth
b.Fifth
c.Sixth
d.Seventh - ANS-d. The seventh character provides information about encounter of
care, such as initial encounter, subsequent encounter, or sequelae (Giannangelo 2016,
123).
What does the fourth character of an ICD-10-CM diagnosis code capture?
a.Anatomic site
b.Severity
c.Etiology
d.Supplemental informatio - ANS-c. The fourth character captures etiology. The fifth
captures anatomic site. The sixth captures severity (Giannangelo 2016, 123).
ICD-10-CM codes must be a minimum length of how many characters?
a.Three
, b.Five
c.Six
d.Seven - ANS-a. codes must be at least three characters, with a decimal point used
after the third character (Giannangelo 2016, 123).
Notes appearing under a 3-character code apply to which of the following?
a.Only to category codes that are exactly three-characters long
b.To all codes within that category
c.Only to one specific code
d.To all codes within that chapter - ANS-b. When a note appears under a three-
character code in ICD-10-CM, it applies to all codes within that category (Giannangelo
2016, 123).
Which volume of ICD-10-CM contains the Tabular and Alphabetic Index of procedures?
a.Volume 1
b.Volume 2
c.Volume 3
d.None of the above - ANS-d. ICD-10-CM includes diagnoses only. In the development
of the ICD-10 code sets, it was determined that creating a separate volume for
procedures would be insufficient. Because of this, an entirely new procedure code
system, ICD-10-PCS, was developed (Giannangelo 2016, 123).
An exception to the Excludes 1 definition is the circumstance when the two conditions
________.
a.Are unrelated to each other
b.Are related to each other
c.Will not be assigned as the principal diagnosis
d.Are injuries with external cause codes - ANS-a. Coding Guideline I.A.12.a explicitly
states this exception (CMS 2018a).
Identify the correct diagnosis code(s) for adenoma of left adrenal cortex with Conn's
syndrome.
a.D35.02, E26.01
QUESTIONS AND
CORRECT ANSWERS
GRADED A+ 2025-2026
ANSWER KEY DOMAIN 1
Identify the diagnosis code(s) for carcinoma in situ of vocal cord.
a.D02.0
b.C32.0
c.D49.1
d.D14.1 - ANS-. a. Index Carcinoma, in situ, see also Neoplasm, by site, in situ
(Schraffenberger 2018, 137, 145).
Identify the diagnosis code(s) for melanoma of skin of right shoulder.
a.D03.61, C43.61
b.C43.61
c.C43.60
d.D03.61 - ANS-b. index Melanoma (malignant), shoulder. Melanoma is considered a
malignant neoplasm and is referenced as such in the index of ICD-10-CM. The term
"benign neoplasm" is considered a growth that does not invade adjacent structures or
spread to distant sites but may displace or exert pressure on adjacent structures
(Schraffenberger 2018, 137, 145).
Which of the following organizations is responsible for updating the procedure
classification of ICD-10-PCS?
a.Centers for Disease Control (CDC)
,b.Centers for Medicare and Medicaid Services (CMS)
c.National Center for Health Statistics (NCHS)
d.World Health Organization (WHO) - ANS-b. CMS is responsible for updating the
procedure classification (ICD-10-PCS) (Giannangelo 2016, 124).
"Code, if applicable, on causal condition first," note indicates that this code may be
assigned as a first listed or principal diagnosis when:
a.the causal condition is a symptom code
b.the code for the condition is unrelated to the causal condition
c.the causal condition is unknown or not applicable
d.the code appears in italicized font - ANS-c. "Causal condition first" general coding
guideline states, "this code may be assigned as principal diagnosis when the causal
condition is unknown or not specified." (CMS, CG7, 2019).
Which character in an ICD-10-CM diagnosis code provides information regarding
encounter of care?
a.Fourth
b.Fifth
c.Sixth
d.Seventh - ANS-d. The seventh character provides information about encounter of
care, such as initial encounter, subsequent encounter, or sequelae (Giannangelo 2016,
123).
What does the fourth character of an ICD-10-CM diagnosis code capture?
a.Anatomic site
b.Severity
c.Etiology
d.Supplemental informatio - ANS-c. The fourth character captures etiology. The fifth
captures anatomic site. The sixth captures severity (Giannangelo 2016, 123).
ICD-10-CM codes must be a minimum length of how many characters?
a.Three
, b.Five
c.Six
d.Seven - ANS-a. codes must be at least three characters, with a decimal point used
after the third character (Giannangelo 2016, 123).
Notes appearing under a 3-character code apply to which of the following?
a.Only to category codes that are exactly three-characters long
b.To all codes within that category
c.Only to one specific code
d.To all codes within that chapter - ANS-b. When a note appears under a three-
character code in ICD-10-CM, it applies to all codes within that category (Giannangelo
2016, 123).
Which volume of ICD-10-CM contains the Tabular and Alphabetic Index of procedures?
a.Volume 1
b.Volume 2
c.Volume 3
d.None of the above - ANS-d. ICD-10-CM includes diagnoses only. In the development
of the ICD-10 code sets, it was determined that creating a separate volume for
procedures would be insufficient. Because of this, an entirely new procedure code
system, ICD-10-PCS, was developed (Giannangelo 2016, 123).
An exception to the Excludes 1 definition is the circumstance when the two conditions
________.
a.Are unrelated to each other
b.Are related to each other
c.Will not be assigned as the principal diagnosis
d.Are injuries with external cause codes - ANS-a. Coding Guideline I.A.12.a explicitly
states this exception (CMS 2018a).
Identify the correct diagnosis code(s) for adenoma of left adrenal cortex with Conn's
syndrome.
a.D35.02, E26.01
