B328ZZZComputerized Tomography (CT Scan) of Bilateral Internal Carotid Arteries
- Billable / Specific Code
B328ZZZ is a billable ICD-10-PCS procedure code for Computerized Tomography (CT Scan) of Bilateral Internal Carotid Arteries. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation Computerized Tomography (CT Scan) involves computer reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Computerized tomography (CT) without contrast.
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 | B | Imaging |
| 2 | Body System | 3 | Upper Arteries |
| 3 | Type | 2 | Computerized Tomography (CT Scan) |
| 4 | BodyPart | 8 | Internal Carotid Arteries, Bilateral |
| 5 | Contrast | Z | None |
| 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:
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 B328ZZZ
Is B328ZZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Computerized Tomography (CT Scan) of Bilateral Internal Carotid Arteries on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in B328ZZZ mean?
The code breaks down character by character: the 1st character B is the Section (Imaging); the 2nd character 3 is the Body System (Upper Arteries); the 3rd character 2 is the Type (Computerized Tomography (CT Scan)); the 4th character 8 is the BodyPart (Internal Carotid Arteries, Bilateral); the 5th character Z is the Contrast (None); the 6th character Z is the Qualifier (None); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of B328ZZZ?
Under the General Equivalence Mappings, Computerized Tomography (CT Scan) of Bilateral Internal Carotid Arteries crosswalks to ICD-9-PCS 88.38 (Other computerized axial tomography). The mapping is approximate, so confirm it fits the documentation.
