CH21SZZTomographic (Tomo) Nuclear Medicine Imaging of Left Breast using Thallium 201 (Tl-201)
- Billable / Specific Code
CH21SZZ is a billable ICD-10-PCS procedure code for Tomographic (Tomo) Nuclear Medicine Imaging of Left Breast using Thallium 201 (Tl-201). It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The root operation Tomographic (Tomo) Nuclear Medicine Imaging involves introduction of radioactive materials into the body for three dimensional display of images developed from the capture of radioactive emissions.
Code Identity
PCS Table Breakdown
Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 1 | Section | C | Nuclear Medicine |
| 2 | Body System | H | Skin, Subcutaneous Tissue and Breast |
| 3 | Type | 2 | Tomographic (Tomo) Nuclear Medicine Imaging |
| 4 | BodyPart | 1 | Breast, Left |
| 5 | Radionuclide | S | Thallium 201 (Tl-201) |
| 6 | Qualifier | Z | None |
| 7 | Qualifier | Z | None |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for CH21SZZ under the General Equivalence Mappings.
Similar Procedure Codes
Questions About CH21SZZ
Is CH21SZZ a billable code?
Yes. CH21SZZ is a complete seven-character ICD-10-PCS code, specific enough to report Tomographic (Tomo) Nuclear Medicine Imaging of Left Breast using Thallium 201 (Tl-201) on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in CH21SZZ mean?
CH21SZZ breaks down character by character: the 1st character C is the Section (Nuclear Medicine); the 2nd character H is the Body System (Skin, Subcutaneous Tissue and Breast); the 3rd character 2 is the Type (Tomographic (Tomo) Nuclear Medicine Imaging); the 4th character 1 is the BodyPart (Breast, Left); the 5th character S is the Radionuclide (Thallium 201 (Tl-201)); the 6th character Z is the Qualifier (None); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of CH21SZZ?
Under the General Equivalence Mappings, Tomographic (Tomo) Nuclear Medicine Imaging of Left Breast using Thallium 201 (Tl-201) crosswalks to ICD-9-PCS 92.19. The mapping is approximate, so confirm it fits the documentation.
