43644 CPT Code: A Comprehensive Guide to Understanding and Utilizing It


Welcome to our comprehensive guide on the 43644 CPT code. In this article, we will delve into the details of this specific CPT code, providing you with a thorough understanding of its purpose, usage, and implications. Whether you are a medical professional, coder, or someone seeking information on this particular code, our aim is to provide you with the most accurate and detailed insights to help you navigate the intricacies of 43644.

What is the 43644 CPT Code?

The 43644 CPT code is a specific Current Procedural Terminology (CPT) code used in the medical field. CPT codes are a standardized system maintained by the American Medical Association (AMA) and are used for reporting medical procedures and services. This particular code, 43644, corresponds to laparoscopic gastric restrictive procedure with gastric bypass and Roux-en-Y gastroenterostomy.

Understanding the Procedure

The 43644 procedure involves a laparoscopic approach to perform a gastric restrictive procedure with gastric bypass and Roux-en-Y gastroenterostomy. This surgical intervention is primarily used to aid in weight loss for individuals with obesity-related health concerns. It involves creating a small gastric pouch to restrict the amount of food intake and rerouting the small intestine to promote malabsorption of calories and nutrients.


The 43644 CPT code is typically utilized in cases where non-surgical weight loss methods have been ineffective, and the patient's body mass index (BMI) exceeds a certain threshold. The procedure may also be indicated for individuals with obesity-related comorbidities, such as diabetes, hypertension, or sleep apnea, which can potentially be alleviated through weight loss.

Procedure Steps

During the 43644 procedure, the surgeon will make several small incisions in the abdomen to insert specialized instruments and a laparoscope, a thin tube with a camera. The surgeon then proceeds to create a small gastric pouch using staples, dividing the stomach into two sections. The small intestine is then divided, and the lower end is connected to the newly created pouch, bypassing the larger part of the stomach.

This rerouting of the digestive system allows food to bypass a significant portion of the stomach and the first part of the small intestine, leading to reduced food intake and malabsorption of nutrients. By combining restrictive and malabsorptive elements, the 43644 procedure aims to promote weight loss and improve obesity-related health conditions.

Recovery and Post-Procedure Care

Following the 43644 procedure, patients are typically required to stay in the hospital for a few days for monitoring and recovery. Pain medication and antibiotics may be prescribed to manage discomfort and prevent infections. Patients are advised to follow a specific diet plan recommended by their healthcare provider, gradually reintroducing solid foods and making long-term dietary adjustments to support weight loss and overall health.

Regular follow-up visits with the surgical team are crucial to monitor the patient's progress, address any concerns, and provide necessary guidance throughout the recovery process. Physical activity, dietary adherence, and lifestyle modifications play a vital role in optimizing the outcomes of the 43644 procedure.

Insurance Coverage and Reimbursement

Insurance coverage for the 43644 procedure can vary depending on factors such as the patient's insurance provider, policy terms, and medical necessity criteria. It is essential to consult with the insurance company and the healthcare provider to understand the coverage details and potential out-of-pocket expenses associated with the procedure.

Coding and billing for the 43644 CPT code require accurate documentation and adherence to specific guidelines. Medical coders and billing professionals should ensure they have a thorough understanding of the code, its modifiers, and any additional documentation requirements to facilitate proper reimbursement and prevent claim denials or delays.


In conclusion, the 43644 CPT code represents a laparoscopic gastric restrictive procedure with gastric bypass and Roux-en-Y gastroenterostomy. This code is utilized for weight loss interventions in individuals with obesity-related health concerns. By providing a comprehensive overview of the 43644 CPT code, we aim to equip medical professionals, coders, and those seeking information with the necessary insights to navigate this specific procedure effectively.

Remember, proper utilization of the 43644 CPT code is crucial for accurate reporting, appropriate reimbursement, and ultimately delivering optimal healthcare outcomes. If you have any further questions or concerns regarding the 43644 procedure, we recommend consulting with a qualified healthcare professional or certified medical coder.