There Are Times When a Fifth, Sixth, or Seventh Character

question 21

Multiple Choice

There are times when a fifth, sixth, or seventh character is required, yet there are no fourth, fifth, or sixth characters. In these cases, ICD-10-CM uses a placeholder character, the letter ________, so the following characters will fall into their correct locations.

• A) Y
• B) X
• C) Z
• D) W

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Definitions:

Retinal Fixations

Moments when the eye remains stationary, focusing on a single point in the field of vision.

Dilations

The process of expansion or enlargement in part or area, often used in medical contexts such as the dilation of pupils or blood vessels.

Optic Chiasm

A crucial structure in the brain where the optic nerves partially cross, playing a key role in the visual processing system.

Occipital Lobe

The rearmost lobe in the brain, responsible for processing visual information from the eyes.