Anesthesia Coding Alert

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Coding Laparoscopic Gastric Bypass

Question: On what surgical code should I base a claim for a laparoscopic gastric bypass? What anesthesia code should I report?

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Answer: Start by basing the claim on surgical code 43659 (Unlisted laparoscopy procedure, stomach). The primary cross-code for this is 00790 (Anesthesia for intraperitoneal procedures in upper abdomen including laparoscopy; not otherwise specified).
 
However, sometimes you need to change codes to fit the situation (remember, the Crosswalk that we get these codes from is a guide, not a law we must always follow). In this case, code 00797 (Anesthesia for intraperitoneal procedures in upper abdomen including laparoscopy; gastric restrictive procedure for morbid obesity) is more appropriate because it is specific to the gastric bypass procedure.

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