Lymphatic System (B7) ICD-10-PCS
The B7 body system covers Imaging procedures on lymphatic system, with 62 ICD-10-PCS codes across 1 root operations, 60 of them billable in fiscal year 2026. 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 1 operations · 62 codes
| Chars 1–3 | Root Operation | Codes | Billable |
|---|---|---|---|
| B70 | Plain RadiographyPlanar display of an image developed from the capture of external ionizing radiation on photographic or photoconductive plate | 62 | 60 |
The info icon shows the official root operation definition and previews the codes in that range.
About the B7 Body System
The ICD-10-PCS root operation for the Lymphatic System under the Imaging section is represented by codes that describe diagnostic imaging procedures. These procedures capture images of the lymphatic structures to assist in diagnosis without altering the body.
The specific code B70 corresponds to Plain Radiography, which involves creating a planar image by using external ionizing radiation captured on a photographic or photoconductive plate. This technique is a non-invasive method to visualize lymphatic anatomy and potential pathological changes. Using the correct ICD-10-PCS lymphatic system imaging codes like B70 ensures detailed and accurate documentation of the imaging modality employed during the diagnostic evaluation.
Questions About This Page
How many codes are in the B7 body system?
The B7 body system contains 62 ICD-10-PCS codes in FY 2026, organized into 1 root operations. 60 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 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
