C23 Positron Emission Tomographic (PET) Imaging - Heart ICD-10-PCS
The C23 code range contains 7 ICD-10-PCS codes for Positron Emission Tomographic (PET) Imaging procedures on the heart. 6 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
Root Operation Definition
Positron Emission Tomographic (PET) Imaging: Introduction of radioactive materials into the body for three dimensional display of images developed from the simultaneous capture, 180 degrees apart, of radioactive emissions.
Codes in the C23 Range 7 codes · 6 billable
- C23 Nuclear Medicine, Heart, Positron Emission Tomographic (PET) ImagingNon-billable header
- C23GKZZ Positron Emission Tomographic (PET) Imaging of Myocardium using Fluorine 18 (F-18)
- C23GMZZ Positron Emission Tomographic (PET) Imaging of Myocardium using Oxygen 15 (O-15)
- C23GQZZ Positron Emission Tomographic (PET) Imaging of Myocardium using Rubidium 82 (Rb-82)
- C23GRZZ Positron Emission Tomographic (PET) Imaging of Myocardium using Nitrogen 13 (N-13)
- C23GYZZ Positron Emission Tomographic (PET) Imaging of Myocardium using Other Radionuclide
- C23YYZZ Positron Emission Tomographic (PET) Imaging of Heart using Other Radionuclide
About the C23 Code Range
The ICD-10-PCS root operation Positron Emission Tomographic (PET) Imaging (code C23) describes a diagnostic nuclear medicine procedure that uses radioactive tracers to capture detailed images of the heart. This non-invasive imaging technique helps evaluate cardiac structure and function.
Within the Nuclear Medicine section, PET imaging of the Heart specifically targets the myocardium or overall heart using various radionuclides. Examples include imaging with Fluorine 18 (F-18) (C23GKZZ), Oxygen 15 (O-15) (C23GMZZ), Rubidium 82 (Rb-82) (C23GQZZ), and Nitrogen 13 (N-13) (C23GRZZ). Other codes reflect the use of alternative radionuclides for either the myocardium (C23GYZZ) or the entire heart (C23YYZZ). Accurately coding these ICD-10-PCS PET imaging procedures ensures precise documentation of the radionuclide used and supports clinical assessment of cardiac health.
Questions About This Page
How many billable codes are in the C23 range?
Of the 7 codes in this range, 6 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 C23 range classify?
The range classifies Positron Emission Tomographic (PET) Imaging procedures, introduction of radioactive materials into the body for three dimensional display of images developed from the simultaneous capture, 180 degrees apart, 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.
