Eye (D8) ICD-10-PCS
The D8 body system covers Radiation Therapy procedures on eye, with 64 ICD-10-PCS codes across 4 root operations, 56 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 · 64 codes
| Chars 1–3 | Root Operation | Codes | Billable |
|---|---|---|---|
| D80 | Beam RadiationA type of radiation therapy that uses a machine to aim high-energy rays at the cancer from outside of the body | 18 | 16 |
| D81 | BrachytherapyA type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor | 30 | 28 |
| D82 | 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 | 8 | 6 |
| D8Y | Other Radiation | 8 | 6 |
The info icon shows the official root operation definition and previews the codes in that range.
About the D8 Body System
The ICD-10-PCS root operation for Radiation Therapy in the Eye body system (D8) involves delivering targeted radiation to treat diseases, often cancer, affecting ocular structures. This treatment uses energy beams or radioactive sources to destroy or control abnormal tissue.
Radiation Therapy for the Eye includes several approaches. Beam Radiation (D80) employs external machines to direct high-energy rays precisely at tumors. Brachytherapy (D81) involves placing radioactive material directly inside or near the tumor using implants such as seeds or wires, allowing focused treatment with limited exposure to surrounding tissue. Stereotactic Radiosurgery (D82) is a highly precise external technique that delivers a single, concentrated dose of radiation, usually guided by specialized equipment to target the tumor accurately. The Other Radiation category (D8Y) encompasses less common or unspecified radiation therapies for the eye. Understanding these ICD-10-PCS eye radiation therapy codes is essential for correctly documenting and billing radiation treatments tailored to ocular conditions.
Questions About This Page
How many codes are in the D8 body system?
The D8 body system contains 64 ICD-10-PCS codes in FY 2026, organized into 4 root operations. 56 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.
