Respiratory System (DB) ICD-10-PCS
The DB body system covers Radiation Therapy procedures on respiratory system, with 400 ICD-10-PCS codes across 4 root operations, 392 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 · 400 codes
| Chars 1–3 | Root Operation | Codes | Billable |
|---|---|---|---|
| DB0 | Beam RadiationA type of radiation therapy that uses a machine to aim high-energy rays at the cancer from outside of the body | 114 | 112 |
| DB1 | BrachytherapyA type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor | 198 | 196 |
| DB2 | 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 | 44 | 42 |
| DBY | Other Radiation | 44 | 42 |
The info icon shows the official root operation definition and previews the codes in that range.
About the DB Body System
The ICD-10-PCS root operation for the Respiratory System under Radiation Therapy involves the controlled use of radiation to treat diseases such as cancer. This operation focuses on delivering targeted radiation to affected respiratory tissues.
Radiation therapy codes in this category include several specific methods. Beam Radiation (DB0) directs high-energy rays externally from a machine to combat tumors without invasive procedures. Brachytherapy (DB1) involves placing radioactive material inside or near the tumor, providing a localized treatment via needles or seeds. Additionally, Stereotactic Radiosurgery (DB2) delivers a precise, high-dose radiation in a single session using specialized equipment to target tumors accurately. There is also an Other Radiation code (DBY) to accommodate different or less common radiation therapies. Understanding these codes is essential for accurately documenting various radiation treatments within the respiratory system.
Questions About This Page
How many codes are in the DB body system?
The DB body system contains 400 ICD-10-PCS codes in FY 2026, organized into 4 root operations. 392 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.
