01BK0ZZ
Excision Head and Neck Sympathetic Nerve to No Qualifier with No Device, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 1 Peripheral Nervous System |
| Operation | B Excision |
| Body Part | K Head and Neck Sympathetic Nerve |
| Approach | 0 Open |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Cutting out or off, without replacement, a portion of a body part
Procedure Overview
This family describes procedures that remove a portion of a peripheral nerve or its associated tissue, such as taking a small nerve biopsy to diagnose conditions like vasculitis or amyloidosis, or removing a segment of nerve that contains a benign tumor such as a schwannoma or neurofibroma. Unlike a full nerve resection performed to eliminate the nerve's function entirely, this operation takes out only part of the structure while leaving the rest intact.
Patients typically undergo this procedure either because a diagnosis cannot be made without direct tissue sampling, or because a growth on the nerve needs to be removed for symptom relief or to rule out malignancy. Recovery depends heavily on which nerve was involved and how large a segment was taken, since sensory or motor deficits can result even from a partial excision.
Anatomy & Axis Detail
Head and Neck Sympathetic Nerve
The head and neck sympathetic nerves include the cervical sympathetic chain and its ganglia, which run along the carotid sheath and regulate pupillary dilation, eyelid position, and facial sweating and vasomotor tone. Excision in this region is performed for sympathetic chain tumors, for hyperhidrosis unresponsive to other therapy, or occasionally as part of oncologic neck dissection when tumor abuts the chain. Because the chain lies in close proximity to the carotid artery, jugular vein, and vagus nerve, dissection demands meticulous technique to avoid injury to these structures. A recognized consequence of removing sympathetic tissue here is Horner syndrome, with ptosis, miosis, and anhidrosis on the affected side, so documentation should specify the ganglion or chain segment excised and confirm laterality.
Approach: Open
Open approach means the surgeon cuts through skin, mucous membrane, or other tissue layers to physically expose the target site to view before performing the procedure. It gives direct visualization and hands-on access, distinguishing it from Percutaneous approaches where instruments pass through a small puncture without exposing the site. Open is typical for procedures needing wide access, such as most laparotomies.
Coding & Documentation
Coders assign this family when the operative report describes cutting out part of a nerve or a lesion attached to it, with no replacement material used. The pathology report and surgeon's description of margins help confirm that a distinct portion, rather than the entire nerve, was removed. A frequent assignment error is applying Excision when the whole nerve was actually transected and not reconnected, which is more accurately captured as Resection in body systems that support it, or confusing a diagnostic nerve biopsy (still Excision) with an incisional biopsy of an unrelated soft tissue mass nearby. Documentation should also clarify whether the nerve itself or a surrounding structure, like a neuroma confined to scar tissue, was the target.