ICD 10 ICD 4

Question 1

In the ICD-10-CM coding convention, what does the abbreviation 'NOS' mean?

Accepted Answer

Not otherwise specified

Answer

NOS means 'not otherwise specified' and corresponds to an unspecified code.

Question 2

What does the abbreviation 'NEC' indicate in ICD-10-CM?

Accepted Answer

Not elsewhere classifiable

Answer

NEC means 'not elsewhere classifiable,' used when no specific code exists for a documented condition.

Question 3

An 'Excludes1' note in ICD-10-CM means what?

Accepted Answer

The excluded code should never be used with the code above it

Answer

Excludes1 is a pure exclusion meaning the two conditions cannot be reported together.

Question 4

An 'Excludes2' note in ICD-10-CM indicates what?

Accepted Answer

The condition is not part of the code but may be coded together if present

Answer

Excludes2 means the excluded condition is separate, and both codes may be assigned if both are present.

Question 5

In the Alphabetic Index, what do brackets [ ] around a code or term typically enclose?

Accepted Answer

Synonyms, alternative wording, or explanatory phrases

Answer

Brackets enclose synonyms, alternative terms, or explanatory phrases in the index and tabular list.

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