C22 Tomographic (Tomo) Nuclear Medicine Imaging - Heart ICD-10-PCS
The C22 code range contains 10 ICD-10-PCS codes for Tomographic (Tomo) Nuclear Medicine Imaging procedures on the heart. 9 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
Root Operation Definition
Tomographic (Tomo) Nuclear Medicine Imaging: Introduction of radioactive materials into the body for three dimensional display of images developed from the capture of radioactive emissions.
Codes in the C22 Range 10 codes · 9 billable
- C22 Nuclear Medicine, Heart, Tomographic (Tomo) Nuclear Medicine ImagingNon-billable header
- C2261ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Right and Left Heart using Technetium 99m (Tc-99m)
- C226YZZ Tomographic (Tomo) Nuclear Medicine Imaging of Right and Left Heart using Other Radionuclide
- C22G1ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Myocardium using Technetium 99m (Tc-99m)
- C22GDZZ Tomographic (Tomo) Nuclear Medicine Imaging of Myocardium using Indium 111 (In-111)
- C22GKZZ Tomographic (Tomo) Nuclear Medicine Imaging of Myocardium using Fluorine 18 (F-18)
- C22GSZZ Tomographic (Tomo) Nuclear Medicine Imaging of Myocardium using Thallium 201 (Tl-201)
- C22GYZZ Tomographic (Tomo) Nuclear Medicine Imaging of Myocardium using Other Radionuclide
- C22GZZZ Tomographic (Tomo) Nuclear Medicine Imaging of Myocardium
- C22YYZZ Tomographic (Tomo) Nuclear Medicine Imaging of Heart using Other Radionuclide
About the C22 Code Range
The ICD-10-PCS root operation C22 - Tomographic (Tomo) Nuclear Medicine Imaging refers to a specialized imaging technique that creates detailed cross-sectional views of body organs using radioactive substances. This operation falls under the Nuclear Medicine classification and is primarily used for diagnostic evaluation.
This imaging is notably applied to the Heart and its parts, such as the Myocardium (heart muscle), capturing functional and structural information. The coding examples include specific radionuclides used during the procedure, like Technetium 99m (Tc-99m) in code C2261ZZ for imaging the right and left heart, or Fluorine 18 (F-18) in C22GKZZ for the myocardium. Other radionuclides such as Indium 111 (In-111), Thallium 201 (Tl-201), and unspecified radionuclides are also included to accurately capture the type of nuclear medicine agent used. Using these codes enables precise documentation of tomographic nuclear medicine imaging procedures focused on cardiac assessment.
Questions About This Page
How many billable codes are in the C22 range?
Of the 10 codes in this range, 9 are billable and valid for inpatient claim submission from October 1, 2025 through September 30, 2026. Table header codes group them but cannot be reported on claims.
What does the C22 range classify?
The range classifies Tomographic (Tomo) Nuclear Medicine Imaging procedures, introduction of radioactive materials into the body for three dimensional display of images developed from the capture of radioactive emissions, performed on the heart. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.
Related References
Source: CMS FY 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
