Connective Tissue (BL) ICD-10-PCS
The BL body system covers Imaging procedures on connective tissue, with 18 ICD-10-PCS codes across 2 root operations, 16 of them billable in fiscal year 2027. Each root operation defines a distinct procedural objective, and the info icons show the official definition with a preview of the codes inside.
Root Operations in This Body System 2 operations · 18 codes
| Chars 1–3 | Root Operation | Codes | Billable |
|---|---|---|---|
| BL3 | Magnetic Resonance Imaging (MRI)Computer reformatted digital display of multiplanar images developed from the capture of radio frequency signals emitted by nuclei in a body site excited within a magnetic field | 13 | 12 |
| BL4 | UltrasonographyReal time display of images of anatomy or flow information developed from the capture of reflected and attenuated high frequency sound waves | 5 | 4 |
The info icon shows the official root operation definition and previews the codes in that range.
About the BL Body System
These imaging codes show connective tissue and tendons in the upper or lower extremities, meaning the arms or legs. The body part character separates connective tissue from tendons and upper from lower extremities.
Magnetic resonance imaging (MRI) builds images from radio signals captured in a magnetic field. Ultrasonography (ultrasound) shows anatomy or flow in real time using reflected high-frequency sound waves.
Questions About This Page
How many codes are in the BL body system?
The BL body system contains 18 ICD-10-PCS codes in FY 2027, organized into 2 root operations. 16 of them are billable on inpatient claims.
What is a root operation?
The root operation is the third character of every ICD-10-PCS code and names the objective of the procedure. Drainage takes fluid out, Excision cuts out a portion of a body part, and Resection removes all of one. Picking the right root operation is the central skill of PCS coding, so each one above carries its official CMS definition.
Related References
Source: CMS FY 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.
