CH2 Tomographic (Tomo) Nuclear Medicine Imaging - Skin, Subcutaneous Tissue and Breast ICD-10-PCS
The CH2 code range contains 11 ICD-10-PCS codes for Tomographic (Tomo) Nuclear Medicine Imaging procedures on the skin, subcutaneous tissue and breast. 10 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 CH2 Range 11 codes · 10 billable
- CH2 Nuclear Medicine, Skin, Subcutaneous Tissue and Breast, Tomographic (Tomo) Nuclear Medicine ImagingNon-billable header
- CH201ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Right Breast using Technetium 99m (Tc-99m)
- CH20SZZ Tomographic (Tomo) Nuclear Medicine Imaging of Right Breast using Thallium 201 (Tl-201)
- CH20YZZ Tomographic (Tomo) Nuclear Medicine Imaging of Right Breast using Other Radionuclide
- CH211ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Left Breast using Technetium 99m (Tc-99m)
- CH21SZZ Tomographic (Tomo) Nuclear Medicine Imaging of Left Breast using Thallium 201 (Tl-201)
- CH21YZZ Tomographic (Tomo) Nuclear Medicine Imaging of Left Breast using Other Radionuclide
- CH221ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Bilateral Breasts using Technetium 99m (Tc-99m)
- CH22SZZ Tomographic (Tomo) Nuclear Medicine Imaging of Bilateral Breasts using Thallium 201 (Tl-201)
- CH22YZZ Tomographic (Tomo) Nuclear Medicine Imaging of Bilateral Breasts using Other Radionuclide
- CH2YYZZ Tomographic (Tomo) Nuclear Medicine Imaging of Skin, Subcutaneous Tissue and Breast using Other Radionuclide
About the CH2 Code Range
The ICD-10-PCS root operation Tomographic (Tomo) Nuclear Medicine Imaging (code CH2) refers to creating detailed cross-sectional images of the skin, subcutaneous tissue, and breast using nuclear medicine techniques. This advanced imaging procedure involves radioactive substances to visualize the internal features of these body parts.
Within the Nuclear Medicine classification, tomographic imaging helps in diagnosing and evaluating conditions affecting the breast and surrounding tissues. Examples include imaging the right breast with Technetium 99m as in code CH201ZZ, or using Thallium 201 indicated by CH20SZZ. The codes also cover imaging the left breast (CH211ZZ, CH21SZZ), bilateral breasts (CH221ZZ, CH22SZZ), and generalized skin or subcutaneous tissue by employing various radionuclides. These specific codes allow for precise documentation of the imaging modality, laterality, and radionuclide used, which is essential for accurate medical records and reporting.
Questions About This Page
How many billable codes are in the CH2 range?
Of the 11 codes in this range, 10 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 CH2 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 skin, subcutaneous tissue and breast. 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.
