Practice Quiz

Medical Coding

Category - ICD-10-CM Volumes 1 and 2

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When is the placeholder “X” used in the ICD-10-CM?
  1. It is used to stipulate that no further expansion is needed
  2. It is used to stipulate that further expansion is needed for certain codes
  3. It is used to define a particular code and indicates that no further expansion is needed
  4. It is used to indicate a subdivision of a code with eight characters
Explanation
Answer: B - The “X” placeholder is used in certain codes to indicate future expansion. The “X” must be used where a placeholder exists to allow that code to be considered valid.
Certain codes need further expansion and are incomplete without the “X” placeholder. There are no 8th characters. ICD-10-CM codes only go up to the 7th character, in some instances.
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