BW2900ZComputerized Tomography (CT Scan) of Head and Neck using High Osmolar Contrast, Unenhanced and Enhanced
- Billable / Specific Code
BW2900Z is a billable ICD-10-PCS procedure code for Computerized Tomography (CT Scan) of Head and Neck using High Osmolar Contrast, Unenhanced and Enhanced. 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) with 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 | W | Anatomical Regions |
| 3 | Type | 2 | Computerized Tomography (CT Scan) |
| 4 | BodyPart | 9 | Head and Neck |
| 5 | Contrast | 0 | High Osmolar |
| 6 | Qualifier | 0 | Unenhanced and Enhanced |
| 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 BW2900Z
Is BW2900Z a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Computerized Tomography (CT Scan) of Head and Neck using High Osmolar Contrast, Unenhanced and Enhanced on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in BW2900Z mean?
The code breaks down character by character: the 1st character B is the Section (Imaging); the 2nd character W is the Body System (Anatomical Regions); the 3rd character 2 is the Type (Computerized Tomography (CT Scan)); the 4th character 9 is the BodyPart (Head and Neck); the 5th character 0 is the Contrast (High Osmolar); the 6th character 0 is the Qualifier (Unenhanced and Enhanced); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of BW2900Z?
Under the General Equivalence Mappings, Computerized Tomography (CT Scan) of Head and Neck using High Osmolar Contrast, Unenhanced and Enhanced crosswalks to ICD-9-PCS 87.04 (Other tomography of head). The mapping is approximate, so confirm it fits the documentation.
