C05 Nonimaging Nuclear Medicine Probe - Central Nervous System ICD-10-PCS
The C05 code range contains 4 ICD-10-PCS codes for Nonimaging Nuclear Medicine Probe procedures on the central nervous system. 3 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
Root Operation Definition
Nonimaging Nuclear Medicine Probe: Introduction of radioactive materials into the body for the study of distribution and fate of certain substances by the detection of radioactive emissions; or, alternatively, measurement of absorption of radioactive emissions from an external source.
Codes in the C05 Range 4 codes · 3 billable
- C05 Nuclear Medicine, Central Nervous System, Nonimaging Nuclear Medicine ProbeNon-billable header
- C050VZZ Nonimaging Nuclear Medicine Probe of Brain using Xenon 133 (Xe-133)
- C050YZZ Nonimaging Nuclear Medicine Probe of Brain using Other Radionuclide
- C05YYZZ Nonimaging Nuclear Medicine Probe of Central Nervous System using Other Radionuclide
About the C05 Code Range
The ICD-10-PCS root operation Nonimaging Nuclear Medicine Probe (code C05) refers to using a nuclear medicine probe to evaluate a body system, here specifically the Central Nervous System, without producing images. This approach allows functional assessment through detection of radionuclide activity.
Within the Nuclear Medicine classification, this method involves measuring physiological processes in the brain or central nervous system by detecting radiation emitted from administered radionuclides. For example, code C050VZZ describes a nonimaging probe study of the brain using Xenon 133 (Xe-133), while C050YZZ covers the use of other radionuclides for brain evaluation. The code C05YYZZ extends this to include other central nervous system regions examined with alternative radionuclides. Utilizing these specific nuclear medicine probe codes ensures precise documentation of functional diagnostics that do not generate images but provide valuable physiological data on the nervous system.
Questions About This Page
How many billable codes are in the C05 range?
Of the 4 codes in this range, 3 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 C05 range classify?
The range classifies Nonimaging Nuclear Medicine Probe procedures, introduction of radioactive materials into the body for the study of distribution and fate of certain substances by the detection of radioactive emissions; or, alternatively, measurement of absorption of radioactive emissions from an external source, performed on the central nervous system. 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.
