72194

Magnetic resonance (MR) imaging, pelvis; without contrast material(s), followed by contrast material(s) and further sequences

CPT code 72194 describes a Magnetic Resonance Imaging (MRI) study of the pelvis that involves a comprehensive evaluation both before and after the intravenous administration of a contrast material. Initially, a series of images of the pelvic region are acquired without contrast. Following this, a gadolinium-based contrast agent is administered intravenously, and additional imaging sequences are performed to assess the vascularity, enhancement patterns, and detailed characteristics of tissues and any identified pathologies. This biphasic approach allows for a more complete diagnostic assessment of complex pelvic conditions, providing superior lesion detection and characterization compared to non-contrast studies alone. MRI of the pelvis offers high-resolution visualization of soft tissues, organs, and bones within the pelvic cavity, including reproductive organs, bladder, rectum, and pelvic musculature, without the use of ionizing radiation.

Clinical Indications

  • Staging, surveillance, or evaluation of suspected primary or recurrent pelvic malignancies (e.g., prostate, cervical, uterine, ovarian, bladder, rectal cancer).
  • Characterization of indeterminate pelvic masses or cysts identified by other imaging modalities (e.g., ultrasound, CT).
  • Evaluation of chronic or acute pelvic pain when other diagnostic methods are inconclusive.
  • Assessment of endometriosis, adenomyosis, or other uterine anomalies (e.g., fibroids with atypical features).
  • Diagnosis and assessment of pelvic inflammatory disease (PID), pelvic abscesses, or other pelvic infections.
  • Investigation of prostate abnormalities, including suspicion of prostate cancer or complex benign prostatic hyperplasia (BPH).
  • Evaluation of congenital anomalies of the genitourinary system within the pelvis.
  • Assessment of pelvic floor dysfunction or abnormalities.
  • Diagnosis of osteomyelitis or other bone/soft tissue infections involving the pelvic bones or joints (e.g., sacroiliitis).
  • Pre-operative planning for complex pelvic surgeries.
  • Evaluation of vascular malformations or bleeding within the pelvis.

Procedure Steps

  1. Patient Preparation: The patient is positioned supine on the MRI scanner table. Specialized pelvic coils are placed over the pelvic area. Instructions regarding breathing may be provided.
  2. Non-Contrast Imaging Acquisition: Multiple MR sequences (e.g., T1-weighted, T2-weighted, fat-suppressed sequences) are acquired in various planes (axial, sagittal, coronal) to provide baseline anatomical and pathological information of the pelvis.
  3. Intravenous Contrast Administration: An intravenous line is established, and a gadolinium-based contrast material is administered, typically via injection.
  4. Post-Contrast Imaging Acquisition: Following contrast administration, additional imaging sequences (e.g., post-contrast T1-weighted fat-saturated images, dynamic contrast-enhanced sequences) are acquired to evaluate contrast enhancement patterns of tissues and any lesions.
  5. Image Processing and Reconstruction: The acquired raw data is processed and reconstructed into diagnostic images.
  6. Radiologist Interpretation and Reporting: A radiologist interprets the images, compares pre- and post-contrast findings, and generates a comprehensive diagnostic report.

Coding Guidelines

  • Code 72194 includes both the non-contrast and contrast-enhanced portions of the pelvic MRI. It should not be reported in conjunction with CPT code 72193 (MRI pelvis, without contrast material) for the same patient and same session.
  • The contrast material itself should be reported separately using the appropriate HCPCS code (e.g., A9577 for Gadolinium-based contrast agent) and the quantity administered.
  • The professional component (radiologist's interpretation and report) should be billed with modifier -26. The technical component (facility, equipment, technologist) should be billed with modifier -TC.
  • Documentation in the patient's medical record must clearly support the medical necessity for the MRI pelvis with and without contrast, including specific clinical indications and the radiologist's findings.
  • If conscious sedation is provided by a physician distinct from the interpreting radiologist, it may be separately reported with appropriate CPT codes (e.g., 99151-99153).
  • Follow local payer policies and guidelines for coverage criteria and specific documentation requirements.

Associated ICD-10 Codes