Hepatobiliary System and Pancreas (DF) ICD-10-PCS
The DF body system covers Radiation Therapy procedures on hepatobiliary system and pancreas, with 240 ICD-10-PCS codes across 4 root operations, 232 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 4 operations · 240 codes
| Chars 1–3 | Root Operation | Codes | Billable |
|---|---|---|---|
| DF0 | Beam RadiationA type of radiation therapy that uses a machine to aim high-energy rays at the cancer from outside of the body | 66 | 64 |
| DF1 | BrachytherapyA type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor | 114 | 112 |
| DF2 | Stereotactic RadiosurgeryA type of external radiation therapy that uses special equipment to position the patient and precisely give a single large dose of radiation to a tumor | 26 | 24 |
| DFY | Other Radiation | 34 | 32 |
The info icon shows the official root operation definition and previews the codes in that range.
About the DF Body System
The ICD-10-PCS root operation DF represents Radiation Therapy for the Hepatobiliary System and Pancreas. This operation involves using targeted radiation to treat diseases, primarily cancer, within these organs.
Radiation Therapy in this body system can be delivered in different ways. For example, Beam Radiation (DF0) uses external machines to direct high-energy rays at tumors from outside the body. Brachytherapy (DF1) places radioactive material directly into or near the tumor to maximize the local effect. Stereotactic Radiosurgery (DF2) utilizes specialized equipment to deliver a precise, high-dose single radiation treatment aimed at the tumor’s exact location. There is also a category for Other Radiation (DFY) methods not specified here. Accurate coding of these radiation therapies is essential for documenting the treatment approach to hepatobiliary and pancreatic conditions.
Questions About This Page
How many codes are in the DF body system?
The DF body system contains 240 ICD-10-PCS codes in FY 2026, organized into 4 root operations. 232 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.
