ICD-10-PCS CG4 Nuclear Medicine: Endocrine System Nonimaging Nuclear Medicine Uptake

The ICD-10-PCS root operation Nonimaging Nuclear Medicine Uptake (CG4) refers to the assessment of radionuclide absorption by a body part without generating images. It is used primarily within the Nuclear Medicine section to evaluate physiological function.

This procedure targets the Endocrine System, specifically assessing how tissues like the Thyroid Gland absorb radioactive substances. For instance, codes such as CG421ZZ specify uptake evaluation using Technetium 99m (Tc-99m), while CG42FZZ and CG42GZZ correspond to uptake with Iodine 123 (I-123) and Iodine 131 (I-131) respectively. Other codes, like CG42YZZ and CG4YYZZ, allow reporting uptake studies using other radionuclides for the thyroid gland or broader endocrine system. Accurate use of these nonimaging nuclear medicine uptake codes ensures documentation of functional assessments critical for diagnosis and treatment planning.

List of ICD-10-PCS codes used to specify CG4 - Nonimaging Nuclear Medicine Uptake (introduction of radioactive materials into the body for measurements of organ function, from the detection of radioactive emissions). There are a total of 6 procedure codes in this section.

• CG4 - Nuclear Medicine, Endocrine System, Nonimaging Nuclear Medicine Uptake

• CG421ZZ - Nonimaging Nuclear Medicine Uptake of Thyroid Gland using Technetium 99m (Tc-99m)

• CG42FZZ - Nonimaging Nuclear Medicine Uptake of Thyroid Gland using Iodine 123 (I-123)

• CG42GZZ - Nonimaging Nuclear Medicine Uptake of Thyroid Gland using Iodine 131 (I-131)

• CG42YZZ - Nonimaging Nuclear Medicine Uptake of Thyroid Gland using Other Radionuclide

• CG4YYZZ - Nonimaging Nuclear Medicine Uptake of Endocrine System using Other Radionuclide