CG42GZZNonimaging Nuclear Medicine Uptake of Thyroid Gland using Iodine 131 (I-131)
- Billable / Specific Code
CG42GZZ is a billable ICD-10-PCS procedure code for Nonimaging Nuclear Medicine Uptake of Thyroid Gland using Iodine 131 (I-131). It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). 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. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Radionuclide therapy and non-imaging procedures.
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 | G | Endocrine System |
| 3 | Type | 4 | Nonimaging Nuclear Medicine Uptake |
| 4 | BodyPart | 2 | Thyroid Gland |
| 5 | Radionuclide | G | Iodine 131 (I-131) |
| 6 | Qualifier | Z | None |
| 7 | Qualifier | Z | None |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
To code nonimaging nuclear medicine uptake of the thyroid gland, open the FY 2027 ICD-10-PCS Alphabetic Index at Nonimaging Nuclear Medicine Uptake, then the subterms Gland, Thyroid. The index leads to table CG4, where the radionuclide, qualifier and qualifier values shown in the breakdown above complete the seven-character code CG42GZZ.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About CG42GZZ
Is CG42GZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Nonimaging Nuclear Medicine Uptake of Thyroid Gland using Iodine 131 (I-131) on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in CG42GZZ mean?
The code breaks down character by character: the 1st character C is the Section (Nuclear Medicine); the 2nd character G is the Body System (Endocrine System); the 3rd character 4 is the Type (Nonimaging Nuclear Medicine Uptake); the 4th character 2 is the BodyPart (Thyroid Gland); the 5th character G is the Radionuclide (Iodine 131 (I-131)); the 6th character Z is the Qualifier (None); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of CG42GZZ?
Under the General Equivalence Mappings, Nonimaging Nuclear Medicine Uptake of Thyroid Gland using Iodine 131 (I-131) crosswalks to ICD-9-PCS 92.01 (Thyroid scan and radioisotope function studies). The mapping is approximate, so confirm it fits the documentation.
