CG4Nuclear Medicine, Endocrine System, Nonimaging Nuclear Medicine Uptake

Nuclear Medicine›Endocrine System›Nonimaging Nuclear Medicine Uptake
  • Non-Billable Header
ICD-10-PCS CG4
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

CG4 is a non-billable ICD-10-PCS code that heads the group for Nuclear Medicine, Endocrine System, Nonimaging Nuclear Medicine Uptake, so it cannot be submitted on a claim; a more specific seven-character code is required. The root operation Nonimaging Nuclear Medicine Uptake involves introduction of radioactive materials into the body for measurements of organ function, from the detection of radioactive emissions.

Code Identity

ICD-10-PCS Code
CG4
Billable Status
No — Non-Billable Header
Code Describes
Nuclear Medicine, Endocrine System, Nonimaging Nuclear Medicine Uptake
Short Description
Nuclear Medicine, Endocrine Sys, Nonimag Nucl Med Uptake

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.

PositionDesignationValueMeaning
1SectionCNuclear Medicine
2Body SystemGEndocrine System
3Operation4Nonimaging Nuclear Medicine Uptake

Similar Procedure Codes

Questions About CG4

Is CG4 a billable code?

No. CG4 is an incomplete heading for Nuclear Medicine, Endocrine System, Nonimaging Nuclear Medicine Uptake and cannot be submitted on a claim. A complete seven-character code is required, such as CG421ZZ, CG42FZZ, and CG42GZZ.