1. Identify the diagnosis code[s] for carcinoma in situ of vocal cord.
a. 231.0
b. 161.0
c. 239.1
d. 212.1 - ANSWERa. 231.0
Index Carcinoma, in situ, see also Neoplasm, by site, in situ.
2. Identify the diagnosis code[s] for melanoma of skin of shoulder.
1. 172.8, 172.6
b. 172.6
c. 172.9
d. 172.8 - ANSWERb. 172.6
Index Melanoma [malignant], shoulder. Melanoma is considered a malignant neoplasm and is
referenced as such in the index of ICD-9-CM. The term "benign neoplasm" is considered a growth that
does not invade adjacent structures or spread to distant sties but may displace or exert pressure on
adjacent structures .
Which of the following organizations is responsible for updating the procedure classification of ICD-9-
CM?
a. Centers for Disease Control [CDC]
b. Centers for Medicare and Medicaid Services [CMS]
c. National Center for Health Statistics [NCHS]
,c. World Health Organization [WHO] - ANSWERb. Centers for Medicare and Medicaid Services [CMS]
NCHS-Natl Center for Health Statistics is responsible for updating the diagnosis classification[Vol 1 & Vol
2], and CMS is responsible for updating the procedure classification [Vol 3].
4. At which level of classification system are the most specific ICD-9-CM codes found?
a. Category level
b. Section level
c. Subcategory level
d. Subclassification level - ANSWERd. Subclassification level
The most specific codes in the ICD-9-CM system are found at the subclassification level.
5. What are five-digit ICD-9-CM diagnosis codes referred to as?
a. Category codes
b. Section codes
c. Subcategory codes
d. Subclassification codes - ANSWERd. Subclassification codes
Five-digit code numbers represent the subclassification level
What are four-digit ICD-9-CM codes referred to as?
a. Category codes
b. Section codes
c. Subcategory codes
d. Subclassification codes - ANSWERc. Subcategory codes
, Categories are divided into subcategories. At this level, four-digit code numbers are used.
Which of the following ICD-9-CM codes are always alphanumeric?
a. Category codes
b. Procedure codes
c. Subcategory codes
d. V codes - ANSWERd. V codes
V codes are always alphanumeric codes. They are easy to identify because they begin with the alpa
character V and follow with numeric digits.
Which of the following ICD-9-CM codes classify environment events and circumstances as the cause of
an injury, poisoning, or other adverse affect?
a. Category codes
b. E codes
c. Subcategory codes
d. V codes - ANSWERb. E codes
E codes provide a means to describe environmental events, circumstances, and conditions as the cause
of injury, poisoning, and other adverse effects.
Which volume of ICD-9-CM contains the Tabular and Alphabetic Index of procedures?
a. Volume 1
b. Volume 2
c. Volume 3
d. Volume 4 - ANSWERc. Volume 3
a. 231.0
b. 161.0
c. 239.1
d. 212.1 - ANSWERa. 231.0
Index Carcinoma, in situ, see also Neoplasm, by site, in situ.
2. Identify the diagnosis code[s] for melanoma of skin of shoulder.
1. 172.8, 172.6
b. 172.6
c. 172.9
d. 172.8 - ANSWERb. 172.6
Index Melanoma [malignant], shoulder. Melanoma is considered a malignant neoplasm and is
referenced as such in the index of ICD-9-CM. The term "benign neoplasm" is considered a growth that
does not invade adjacent structures or spread to distant sties but may displace or exert pressure on
adjacent structures .
Which of the following organizations is responsible for updating the procedure classification of ICD-9-
CM?
a. Centers for Disease Control [CDC]
b. Centers for Medicare and Medicaid Services [CMS]
c. National Center for Health Statistics [NCHS]
,c. World Health Organization [WHO] - ANSWERb. Centers for Medicare and Medicaid Services [CMS]
NCHS-Natl Center for Health Statistics is responsible for updating the diagnosis classification[Vol 1 & Vol
2], and CMS is responsible for updating the procedure classification [Vol 3].
4. At which level of classification system are the most specific ICD-9-CM codes found?
a. Category level
b. Section level
c. Subcategory level
d. Subclassification level - ANSWERd. Subclassification level
The most specific codes in the ICD-9-CM system are found at the subclassification level.
5. What are five-digit ICD-9-CM diagnosis codes referred to as?
a. Category codes
b. Section codes
c. Subcategory codes
d. Subclassification codes - ANSWERd. Subclassification codes
Five-digit code numbers represent the subclassification level
What are four-digit ICD-9-CM codes referred to as?
a. Category codes
b. Section codes
c. Subcategory codes
d. Subclassification codes - ANSWERc. Subcategory codes
, Categories are divided into subcategories. At this level, four-digit code numbers are used.
Which of the following ICD-9-CM codes are always alphanumeric?
a. Category codes
b. Procedure codes
c. Subcategory codes
d. V codes - ANSWERd. V codes
V codes are always alphanumeric codes. They are easy to identify because they begin with the alpa
character V and follow with numeric digits.
Which of the following ICD-9-CM codes classify environment events and circumstances as the cause of
an injury, poisoning, or other adverse affect?
a. Category codes
b. E codes
c. Subcategory codes
d. V codes - ANSWERb. E codes
E codes provide a means to describe environmental events, circumstances, and conditions as the cause
of injury, poisoning, and other adverse effects.
Which volume of ICD-9-CM contains the Tabular and Alphabetic Index of procedures?
a. Volume 1
b. Volume 2
c. Volume 3
d. Volume 4 - ANSWERc. Volume 3
