Urinary System (CT) ICD-10-PCS
The CT body system covers Nuclear Medicine procedures on urinary system, with 38 ICD-10-PCS codes across 3 root operations, 32 of them billable in fiscal year 2026. Each root operation defines a distinct procedural objective, and the info icons show the official definition with a preview of the codes inside.
Root Operations in This Body System 3 operations · 38 codes
| Chars 1–3 | Root Operation | Codes | Billable |
|---|---|---|---|
| CT1 | Planar Nuclear Medicine ImagingIntroduction of radioactive materials into the body for single plane display of images developed from the capture of radioactive emissions | 16 | 14 |
| CT2 | Tomographic (Tomo) Nuclear Medicine ImagingIntroduction of radioactive materials into the body for three dimensional display of images developed from the capture of radioactive emissions | 8 | 6 |
| CT6 | Nonimaging Nuclear Medicine AssayIntroduction of radioactive materials into the body for the study of body fluids and blood elements, by the detection of radioactive emissions | 14 | 12 |
The info icon shows the official root operation definition and previews the codes in that range.
About the CT Body System
The ICD-10-PCS root operation CT pertains to procedures in the Urinary System under the Nuclear Medicine section, involving the use of radioactive materials to perform diagnostic studies. These procedures are central to capturing images or data based on radioactive emissions for clinical evaluation.
The CT urinary system codes describe specific nuclear medicine imaging techniques. For example, Planar Nuclear Medicine Imaging (code CT1) captures single-plane images by introducing radioactive substances and detecting their emissions. In contrast, Tomographic Nuclear Medicine Imaging (code CT2) offers three-dimensional views, providing more detailed anatomical evaluation. Additionally, Nonimaging Nuclear Medicine Assay (code CT6) uses radioactive tracers to analyze body fluids and blood elements without producing images, instead measuring radioactive emissions for diagnostic insight. These procedures enable precise functional assessment of the urinary system, making accurate coding essential for documenting nuclear medicine diagnostics.
Questions About This Page
How many codes are in the CT body system?
The CT body system contains 38 ICD-10-PCS codes in FY 2026, organized into 3 root operations. 32 of them are billable on inpatient claims.
What is a root operation?
The root operation is the third character of every ICD-10-PCS code and names the objective of the procedure. Drainage takes fluid out, Excision cuts out a portion of a body part, and Resection removes all of one. Picking the right root operation is the central skill of PCS coding, so each one above carries its official CMS definition.
Related References
Source: CMS FY 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
