CPT:
CODE IT
ICD-10-CM CODING
GUIDELINES AND CONVENTIONS
MEDICAL TERMINOLOGY
MODIFIERS
100

Office visit for an established patient, office or other outpatient services, straightforward MDM

What is 99212?

100

ICD-10-CM codes can have up to this many characters

What is 7 characters?

100

These notes mean “not coded here”

What are Excludes1 notes?

100

“-itis” means

What is inflammation?

100

Modifier -25 indicates

What is significant, separately identifiable E/M service?

200

Excision of a benign lesion, 1.5 cm, from the arm

What is 11402?

200

This character is often used as a placeholder in ICD-10-CM

What is “X”?

200

This instruction tells you to code an additional condition

What is “Use additional code”?

200

“Cardi/o” refers to

What is heart?

200

Modifier -59 is used for

What is distinct procedural service?

300

Chest X-ray, 2 views, with interpretation 

What is 71046?

300

The 7th character “A” typically indicates

What is initial encounter?

300

This instruction means you must code first the underlying condition

What is “Code first”?

300

“Hyper-” means

What is excessive/high?

300

Modifier -51 indicates

What is multiple procedures?

400

Removal of impacted cerumen, requiring instrumentation, unilateral

What is 69210?

400

“NEC” means

What is Not Elsewhere Classified?

400
This symbol means that new procedure numbers added to the CPT codebook are identified throughout the text. 

What is a red dot?

400

“Oste/o” refers to

What is bone?

400

Modifier -22 indicates

What is increased procedural services?

500

Injection of a therapeutic drug, subcutaneous or intramuscular

What is 96372?

500

This chapter of codes includes signs and symptoms

What is chapter 18?

500

Codes annotated with this symbol are exempt from multiple procedures concept. 

What is the plus sign? (or add-on codes)

500

“Hemat/o” refers to

What is blood?

500

Modifier -LD indicates

What is left anterior descending coronary artery? 

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