Hormones are:
A. fibrous proteins.
B. involved in the immune system.
C. chemical messengers.
D. enzymes.
Answer: C
Health Professions
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ICD-10-CM diagnosis codes contain 3, 4, 5, 6, or 7 characters, and disease codes with three characters are included in ICD-10-CM as the heading of a __________ of codes that may be further subdivided by the use of fourth, fifth, sixth, or seventh characters to provide greater specificity
a. category b. chapter c. character d. classification
Health Professions
The term tachycardia means:
A. absence of heart rate. B. slow heart rate. C. fast heart rate. D. normal heart rate.
Health Professions