1.  0WJP0ZZ Root Operation: Inspection, Gastrointestinal Tract (0WJP)

Rationale: During this procedure, the gastrointestinal tract was explored with no disease being found. Therefore, Inspection is the root operation. Inspection is defined as visually exploring a body part.

2.  00K73ZZ Root Operation: Map, Cerebral Hemisphere (00K7)

Rationale: Mapping of the cerebral hemisphere.

3.  0WJ94ZZ Root Operation: Inspection, Pleural Cavity, Right (0WJ9)

Rationale: ICD-10-PCS Coding Guideline B3.3 states that if the intended procedure is discontinued or otherwise not completed, code the procedure to the root operation performed. Because the procedure was discontinued due to the pleural effusion before any other root operation was performed, the root operation Inspection is coded for the initial endoscopic evaluation, with a percutaneous endoscopic approach.

4.  0BJ08ZZ Root Operation: Inspection, Tracheobronchial Tree (0BJ0)

Rationale: ICD-10-PCS Coding Guideline B3.11b states if multiple tubular body parts are inspected, the most distal body part inspected is coded. If multiple non-tubular body parts in a region are inspected, the body part that specifies the entire area inspected is coded.

5.  02K83ZZ Root Operation: Map, Conduction Mechanism (02K8)

Rationale: Mapping of the conduction mechanism of the heart.