BL4Imaging, Connective Tissue, Ultrasonography

Imaging›Connective Tissue›Ultrasonography
  • Non-Billable Header
ICD-10-PCS BL4
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

BL4 is a non-billable ICD-10-PCS code that heads the group for Imaging, Connective Tissue, Ultrasonography, so it cannot be submitted on a claim; a more specific seven-character code is required. The root operation Ultrasonography involves real time display of images of anatomy or flow information developed from the capture of reflected and attenuated high frequency sound waves.

Code Identity

ICD-10-PCS Code
BL4
Billable Status
No — Non-Billable Header
Code Describes
Imaging, Connective Tissue, Ultrasonography
Short Description
Imaging, Connective Tissue, Ultrasonography

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
1SectionBImaging
2Body SystemLConnective Tissue
3Operation4Ultrasonography

Similar Procedure Codes

Questions About BL4

Is BL4 a billable code?

No. BL4 is an incomplete heading for Imaging, Connective Tissue, Ultrasonography and cannot be submitted on a claim. A complete seven-character code is required, such as BL40ZZZ, BL41ZZZ, and BL42ZZZ.