D026HZZ
Stereotactic Radiosurgery Spinal Cord to None with None, Stereotactic Particulate Radiosurgery Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | D Radiation Therapy |
| Body System | 0 Central and Peripheral Nervous System |
| Operation | 2 Stereotactic Radiosurgery |
| Body Part | 6 Spinal Cord |
| Approach | H Stereotactic Particulate Radiosurgery |
| Device | Z None |
| Qualifier | Z None |
Procedure Overview
Stereotactic radiosurgery of the central and peripheral nervous system delivers a single, highly focused dose of radiation to a precisely mapped target in the brain, spine, or nerve tissue, without an incision. Imaging such as MRI or CT is fused with a targeting frame or frameless tracking system so the beams converge on the lesion from many angles, sparing surrounding healthy tissue. It is used for brain tumors (benign and malignant), arteriovenous malformations, acoustic neuromas, trigeminal neuralgia, and some inoperable or recurrent lesions.
Because the treatment is confined to one or a few sessions rather than weeks of daily fractions, patients often avoid a hospital stay, and recovery is largely limited to the effects of the underlying condition rather than surgical wound healing. It is chosen when a lesion is small, well-defined, and located where open surgery would carry high risk to nearby structures like the brainstem or optic pathways.
Anatomy & Axis Detail
Spinal Cord
Stereotactic radiosurgery of the spinal cord, often called spine stereotactic body radiotherapy in clinical parlance, delivers a small number of high-precision fractions to a vertebral or paraspinal target while sparing the cord itself as an organ at risk, or in select cases treats an intramedullary lesion directly. Because the cord is a mobile, elongated structure within the spinal canal, treatment requires image guidance at each session to confirm positioning, since even small shifts can bring an ablative dose into direct contact with cord tissue. This technique is used particularly for spinal metastases causing pain or threatened compression where conventional fractionated radiation has already been given or would exceed cumulative tolerance, making the specific vertebral level and its relationship to the cord central to accurate documentation.
Modality Qualifier: Stereotactic Particulate Radiosurgery
Stereotactic Particulate Radiosurgery refers to single- or limited-fraction radiosurgical treatment delivered with charged particle beams, such as protons, using stereotactic targeting to achieve sharp dose falloff around a small lesion. Its particle physics gives it a different depth-dose profile than the photon-based stereotactic techniques, making it useful when sparing tissue just beyond the target is a priority, unlike Stereotactic Other Photon Radiosurgery or Gamma Beam approaches.
Coding & Documentation
Coders assign codes from this family when documentation names the delivery platform (Gamma Knife, CyberKnife, or a linear accelerator configured for radiosurgery) and confirms the treatment was a stereotactic, image-guided single-fraction or hypofractionated course rather than conventional fractionated therapy. The physician's treatment planning note and the radiation oncology summary are the primary sources, and the specific body part value (brain, spinal cord, peripheral nerve) must match the documented target.
A frequent error is defaulting to "Beam Radiation" when the note actually describes stereotactic guidance, since the two share equipment but differ in root operation. Another is missing the correct body part when a lesion sits at the junction of two named structures, such as the cerebellopontine angle, which requires checking whether the target is classified as brain or cranial nerve.