Summary & Overview
CPT 78261: Radionuclide Imaging of Gastric Mucosa
CPT code 78261 denotes a radionuclide imaging study of the gastric mucosa performed after intravenous administration of a radiopharmaceutical. Clinically, the procedure is used to identify sources of acute gastrointestinal bleeding and to detect conditions such as Meckel’s diverticulum or gastric mucosal abnormalities, and it is commonly performed in pediatric and hospital-based settings. Nationally, accurate coding for this nuclear medicine study matters for appropriate clinical documentation, cross-specialty coordination, and consistent claims processing.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context and typical service settings, common billing modifiers and administrative considerations, and guidance on where to look for payer-specific coverage policies. The publication summarizes benchmarks and policy updates when available and highlights areas where data is not provided in the input.
This summary is intended to orient clinicians, coding professionals, and policy analysts to the purpose and typical use of CPT code 78261, the primary sites where the service is delivered, and the major commercial and public payers relevant to national billing and policy discussions. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 78261 describes imaging of the gastric mucosa after intravenous administration of a radiopharmaceutical or tracer. The study images the lining of the stomach to evaluate causes of acute gastrointestinal bleeding and related disorders.
Service type: Nuclear medicine imaging study of gastric mucosa (radiotracer-based)
Typical site of service: Hospital outpatient imaging center or pediatric radiology/nuclear medicine department
Clinical & Coding Specifications
Clinical Context
A 7-year-old child presents to the pediatric emergency department with painless, intermittent episodes of bright red rectal bleeding over 24 hours. Initial vital signs are stable but the child has mild anemia on laboratory testing. After stabilizing with IV fluids and crossmatching, the pediatrician requests a nuclear medicine gastric mucosal imaging study to evaluate for ectopic gastric mucosa such as Meckel’s diverticulum. The nuclear medicine technologist obtains IV access and administers the radiopharmaceutical (typically technetium-99m pertechnetate). Sequential abdominal and pelvic gamma camera images are acquired over a period of 30–60 minutes while the child is monitored by the nuclear medicine nurse. The interpreting nuclear medicine physician reviews dynamic and static images, documents focal tracer uptake in the right lower quadrant consistent with ectopic gastric mucosa, and provides a written report to the referring pediatric surgeon and emergency department team for further management.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the interpreting physician service separate from facility technical component |
TC | Technical component |