ICD 10 Advanced Topics 3 — Questions and Answers
Question 1: The ICD-10-CM abbreviation 'NOS' is equivalent to which term?
- Unspecified (Correct answer)
- Not elsewhere classifiable
- With manifestation
- See also
Correct answer: Unspecified
NOS means 'not otherwise specified' and is equivalent to 'unspecified,' used when documentation lacks detail.
Question 2: A 'Code first' note in ICD-10-CM instructs the coder to:
- Sequence the underlying etiology code before the manifestation (Correct answer)
- List the manifestation first
- Use only one code
- Skip the encounter code
Correct answer: Sequence the underlying etiology code before the manifestation
'Code first' identifies an etiology/manifestation pairing where the underlying condition must be sequenced before the manifestation.
Question 3: In etiology/manifestation coding, the manifestation code typically appears in the Tabular List with what convention?
- In brackets and 'use additional code' (Correct answer)
- Bolded as primary
- With a 7th character 'S'
- As an Excludes1 note
Correct answer: In brackets and 'use additional code'
Manifestation codes appear in brackets in the Alphabetic Index and carry a 'use additional code' note, and they may never be sequenced first.
Question 4: What does the 7th character 'D' represent for an injury code?
- Subsequent encounter during healing/recovery (Correct answer)
- Initial encounter
- Sequela
- Delayed diagnosis
Correct answer: Subsequent encounter during healing/recovery
The 7th character 'D' indicates a subsequent encounter, used after the patient has received active treatment and is in the healing or recovery phase.
Question 5: For fracture coding, which 7th character indicates a subsequent encounter for a fracture with nonunion?
- K (Correct answer)
- A
- D
- S
Correct answer: K
The 7th character 'K' designates a subsequent encounter for a fracture with nonunion.
Question 6: When coding for a patient seen for aftercare following a completed treatment, which Z-code category is generally used?
- Z47/Z48 aftercare codes (Correct answer)
- An injury code with 7th character 'A'
- An R-code
- A V-code only
Correct answer: Z47/Z48 aftercare codes
Aftercare Z-codes (such as Z47 and Z48) are used for planned, ongoing care after the initial treatment of a disease or injury is completed, rather than injury codes with 'D'.
Question 7: The instructional note 'Use additional code' in ICD-10-CM tells the coder to:
- Add a secondary code to fully describe the condition (Correct answer)
- Replace the primary code
- Ignore the manifestation
- Code only the symptom
Correct answer: Add a secondary code to fully describe the condition
'Use additional code' signals that a secondary code is needed to provide a more complete picture of the diagnosis.
ICD 10 Advanced Topics 3
The ICD-10-CM abbreviation 'NOS' is equivalent to which term?