The ICD-10-CM Table of Neoplasms Is Indexed According to Anatomic

question 69

Multiple Choice

The ICD-10-CM Table of Neoplasms is indexed according to anatomic site and contains four cellular classifications, organized in columns: malignant, benign, uncertain behavior, and unspecified nature. Which column classifies the original cancerous tumor site?

• A) primary malignant
• B) secondary malignant
• C) carcinoma in situ
• D) unspecified nature

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Definitions:

T Tubule

T Tubules, or transverse tubules, are extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, facilitating the rapid transmission of signals.

Triad

Two terminal cisternae and a T tubule between them.

Mitochondria

Organelles found in large numbers in most cells, where the biochemical processes of respiration and energy production occur.

Skeletal Muscle Fibers

The long, cylindrical cells that make up skeletal muscles, responsible for voluntary movements through contraction.