CDC CPT, ICD-10, & CDT Coding Systems 3

Question 1

What is the primary purpose of ICD-10-CM in dental billing?

Accepted Answer

To document the medical diagnosis or reason for the dental visit

Answer

ICD-10-CM codes document the diagnosis or medical reason supporting the dental service provided.

Question 2

CDT code D2391 refers to resin-based composite for the posterior tooth. What does the suffix '1' in the series indicate?

Accepted Answer

One surface

Answer

In composite restoration CDT codes, the numeric suffix indicates the number of surfaces involved (1 = one surface).

Question 3

Which CPT code range covers services to the mouth, tongue, and salivary glands?

Accepted Answer

40000–40799

Answer

CPT codes 40000–40799 cover procedures on the lips, tongue, mouth, and related oral structures.

Question 4

An ICD-10-CM code has 7 characters. What do characters 4–6 generally represent?

Accepted Answer

Etiology, anatomical site, or severity

Answer

In ICD-10-CM, characters 4 through 6 provide additional specificity including etiology, anatomical site, and severity.

Question 5

Which CDT code is used for a complete series of radiographic images?

Accepted Answer

D0210

Answer

D0210 is the CDT code for a complete series of radiographic images, typically 14–22 periapical and bitewing images.

(CDC) Certified Dental Coder Practice Test