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CPT, ICD-10, & CDT Coding Systems Flashcards

7 cards from real CDC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 CPT, ICD-10, & CDT Coding Systems flashcards as text
  1. Which CDT code is most appropriate for documenting a prophylaxis for an adult patient?

    Answer: D1110

    D1110 is the CDT code for a prophylaxis (cleaning) performed on an adult patient age 14 and older.

  2. ICD-10-CM code K02.51 specifically describes:

    Answer: Dental caries on pit and fissure surface limited to enamel

    K02.51 identifies dental caries on pit and fissure surface limited to enamel, providing high specificity for the lesion.

  3. A dental office bills for a patient's full-mouth debridement to enable comprehensive evaluation. Which CDT code applies?

    Answer: D4355

    D4355 is the CDT code for full-mouth debridement to enable a comprehensive periodontal evaluation and diagnosis.

  4. In CPT coding, an add-on code is best described as:

    Answer: A code always reported in conjunction with a primary procedure code

    CPT add-on codes are reported alongside a primary procedure code and are never reported alone.

  5. Which ICD-10-CM code block covers diseases of the oral cavity and salivary glands?

    Answer: K00–K14

    ICD-10-CM codes K00 through K14 cover diseases of the oral cavity and salivary glands, including dental caries and periodontal disease.

  6. A dental coder assigns D6010 for implant placement. Which CDT category does this fall under?

    Answer: Implant Services (D6000–D6199)

    D6010 (endosseous implant body, placed) falls under the Implant Services subcategory within the D6000–D6199 range.

  7. The ICD-10-CM placeholder character 'X' is used to:

    Answer: Allow future expansion and maintain code structure

    The placeholder 'X' is inserted in ICD-10-CM codes to fill positions and preserve the 7-character code structure for future expansion.