(A 42-year-old female is in the operative room to repair azone 2 flexor digitorum profundus...

Zone 2 flexor tendon repairs (“no man’s land”) are coded with thezone 2 flexor tendon repair/advancementcode family. Because the case specifieszone 2 FDP tendon repairof the index finger, the correct tendon repair code is26356(zone 2 flexor tendon repair/advancement; primary, without free graft, each tendon). The associateddigital nerve repairis separately reported with64831(suture of digital nerve; one nerve). Since both procedures are performed in the same operative session, the secondary procedure commonly carriesmodifier -51for multiple procedures when required by payer/claim conventions (as reflected in the answer choices). The operative note specifically states use of anoperating microscopefor microsurgical nerve repair, which supports add-on code69990(microsurgical techniques requiring operating microscope), reportedonce per sessionandnotwith modifier 51. Therefore, the only fully correct option including tendon, nerve repair, and microscope reporting isA.