BL41ZZZUltrasonography of Lower Extremity Connective Tissue
- Billable / Specific Code
BL41ZZZ is a billable ICD-10-PCS procedure code for Ultrasonography of Lower Extremity Connective Tissue. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). 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
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 | L | Connective Tissue |
| 3 | Type | 4 | Ultrasonography |
| 4 | BodyPart | 1 | Connective Tissue, Lower Extremity |
| 5 | Contrast | Z | None |
| 6 | Qualifier | Z | None |
| 7 | Qualifier | Z | None |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for BL41ZZZ under the General Equivalence Mappings.
Similar Procedure Codes
Questions About BL41ZZZ
Is BL41ZZZ a billable code?
Yes. BL41ZZZ is a complete seven-character ICD-10-PCS code, specific enough to report Ultrasonography of Lower Extremity Connective Tissue on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in BL41ZZZ mean?
BL41ZZZ breaks down character by character: the 1st character B is the Section (Imaging); the 2nd character L is the Body System (Connective Tissue); the 3rd character 4 is the Type (Ultrasonography); the 4th character 1 is the BodyPart (Connective Tissue, Lower Extremity); 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 BL41ZZZ?
Under the General Equivalence Mappings, Ultrasonography of Lower Extremity Connective Tissue crosswalks to ICD-9-PCS 88.79. The mapping is approximate, so confirm it fits the documentation.
