What Gastric Bypass ICD-10 codes can I use?
ICD-10-CM codes for gastric bypass document the patient’s surgical history, associated conditions like obesity, diabetes, and hypertension, and any related complications including those that may affect pregnancy. These codes help ensure accurate diagnosis reporting, guide treatment plans, and support billing and reimbursement.
The most commonly used ICD-10 codes for gastric bypass include:
E10.9 – Type 1 diabetes mellitus without complications
Used for patients with type 1 diabetes without any associated complications. While type 1 diabetes is less commonly treated with gastric bypass, this code may still apply if the patient has both conditions.
E11.9 – Type 2 diabetes mellitus without complications
This code applies to patients with type 2 diabetes who have no documented complications. It's frequently seen in patients undergoing or recovering from gastric bypass, as the procedure can affect blood glucose control.
E66.01 – Morbid (severe) obesity due to excess calories
This code is commonly used as the primary diagnosis leading to bariatric surgery. It identifies patients with severe obesity caused by excess caloric intake, often qualifying them for weight-loss interventions.
I10 – Essential (primary) hypertension
Hypertension often coexists with obesity and is typically monitored or treated both before and after gastric bypass surgery. This code is used for patients with elevated blood pressure without secondary causes.
K91.0 – Vomiting following gastrointestinal surgery
This code is used when a patient experiences persistent vomiting as a direct result of the gastric bypass or another gastrointestinal surgery.
K91.89 – Other postprocedural complications and disorders of the digestive system
This code is appropriate when the patient experiences digestive issues following gastric bypass, such as strictures, leaks, or malabsorption, that are not classified under a more specific complication code.
O99.84X – Bariatric surgery status complicating pregnancy, childbirth, and the puerperium
This series of codes is used when a patient's history of bariatric surgery complicates pregnancy, childbirth, or the postpartum period. The fifth or sixth character will vary depending on the trimester or encounter type.
T81.4XXA – Infection following a procedure, initial encounter
Used for infections that occur as a result of the surgical procedure, including wound infections post-gastric bypass. The "A" at the end denotes that it is the initial encounter for the complication.
Z98.84 – Bariatric surgery status (e.g., gastric bypass, sleeve gastrectomy, gastric banding)
This code is used to indicate that a patient has undergone bariatric surgery in the past, such as gastric bypass or other weight-loss procedures. It reflects the patient’s surgical history and may influence current or future medical management.