CPT Code Book Symbols
Prefix/Root/Suffix
Anatomy
Modifiers
Medical Acronyms/Abbreviations
100

+

What is add-on code?

100

a-

What is not, without, lacking

100

Human anatomy definition

What is the study of the structures of the human body?

100

Modifier 25

What is the modifier used to signify that when a separate identifiable evaluation-and-management (E/M) service was performed?

100

DOB

What is date of birth?

200

#

What is the symbol that indicates a re-sequenced code?

200

dif-

What is separate?

200

Term for the fingers attached to a hand

What is phalanges?

200

Modifier 52

What is reduced services?

200

NAD

What is no acute distress?

300

Star

What is the telemedicine symbol?

300

-hexia

What is condition?

300

Term for arms and legs

What is extremities?

300

Modifier 57

What is decision for surgery?

300

CVA

What is cerebral vascular accident?  

400

Triangle

What is the symbol for Revised code?

400

oophor/o

What is ovary?

400

Skin, hair, and nails are part of this organ system

What is integumentary system?

400

Modifier 62

What is two surgeons?

400

CBAG

What is Coronary artery bypass graft?

500

Lightning bolt

What is the symbol for vaccines pending FDA approval?

500

lei/o 

What is smooth?  

500

Total number of organ systems 

What is 11? 

500

Modifier T2

What is left foot, third toe?

500

ETOH

What is ethanol (alcohol)?