Root Operations can have similar meanings but different PCS definitions

Each of the following is a use of radiographs in the assessment of periodontal disease prognosis EXCEPT one. Which one is the EXCEPTION?

a. Evaluating root-to-crown ratio b. Detecting furcation involvement c. Determining active versus inactive disease d. Revealing root shape and length

Suzie Smitz presents for admission due to threatened premature labor at 26 weeks. Contractions stopped after two hours, and she was confined to bed rest. No delivery occurred. Select the appropriate ICD-9-CM code(s)

644 Early or threatened labor 644.03 Threatened premature labor Premature labor after 22 weeks, but before 37 completed weeks of gestation without delivery 644.13 Other threatened labor False labor: Not otherwise specified, without delivery After 37 completed weeks of gestation, without delivery Threatened labor, not otherwise specified, without delivery 644.23 Early onset of delivery Onset (spontaneous) of delivery, before 37 completed weeks of gestation Premature labor with onset of delivery, before 37 completed weeks of gestation A) 644 B) 644.03 C) 644.13 D) 644.23