CDC Periodontal Procedures Coding

Question 1

Which CDT code is used to report a full mouth debridement to enable a comprehensive periodontal evaluation?

Accepted Answer

D4355

Answer

D4355 is specifically designated for full mouth debridement, a gross removal of plaque and calculus that interferes with a comprehensive oral evaluation.

Question 2

What is the CDT code for periodontal scaling and root planing involving four or more teeth per quadrant?

Accepted Answer

D4341

Answer

D4341 covers periodontal scaling and root planing when four or more teeth per quadrant are treated, distinguishing it from D4342 which covers one to three teeth.

Question 3

Which CDT code is reported for periodontal maintenance following the completion of active periodontal therapy?

Accepted Answer

D4910

Answer

D4910 (periodontal maintenance) is used after a patient has completed active periodontal therapy to maintain periodontal health, and is distinct from routine prophylaxis.

Question 4

What CDT code represents a prophylaxis procedure for an adult patient?

Accepted Answer

D1110

Answer

D1110 is the CDT code for prophylaxis in adult patients (typically 14 years and older), involving removal of plaque, calculus, and stains.

Question 5

What is the key clinical distinction between CDT codes D4341 and D4342?

Accepted Answer

D4341 covers four or more teeth per quadrant; D4342 covers one to three teeth per quadrant

Answer

The only clinical distinction between D4341 and D4342 is the number of teeth treated: D4341 applies to four or more teeth per quadrant, while D4342 applies to one to three teeth per quadrant.

(CDC) Certified Dental Coder Practice Test

(CDC) Certified Dental Coder Practice Test

CDC Periodontal Procedures Coding