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2025 CPT code 49400

Injection of air or contrast into the peritoneal cavity (separate procedure).

This code is reported as a separate procedure and does not include the radiological supervision and interpretation (74190).

Modifiers may be applicable to this code, such as 22 (Increased Procedural Services), 52 (Reduced Services), 59 (Distinct Procedural Service), and others, depending on the circumstances of the procedure.

Medical necessity must be established by the clinical indication for the enhanced radiological study, such as suspected adhesions, ascites, or pre-operative planning for laparoscopy.

The physician is responsible for preparing the patient, administering anesthesia, inserting the needle/catheter, and injecting the air or contrast material. They may also perform and report the separate radiological study.

IMPORTANT:(For radiological supervision and interpretation, use 74190)

In simple words: The doctor injects air or a special dye into the abdomen to help see the organs better on an X-ray or scan. This is done with a needle, and the patient gets medicine to numb the area first.

This procedure involves injecting air or contrast material into the abdominal cavity to enhance the visualization of intra-abdominal organs and structures during a separate radiological study. The provider inserts a needle through the abdominal wall, using local anesthesia or a nerve block. Air or contrast material is then injected via the needle or a catheter. The air lifts the abdominal wall away from the organs for improved visibility, while the contrast material highlights the organs and structures on radiological imaging.

Example 1: A patient with suspected abdominal adhesions undergoes this procedure to improve the visibility of the affected areas during a CT scan., Prior to a laparoscopic procedure, air is injected into the peritoneal cavity to create space for the instruments and improve visualization., A patient with ascites undergoes this procedure with contrast material to outline the abdominal structures and assess the extent of fluid accumulation.

Documentation should include the reason for the procedure, type of contrast material used (if any), method of anesthesia, and confirmation of successful injection. The separate radiological study should also be documented.

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