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Decompression of the internal auditory canal is a surgical procedure aimed at alleviating pressure within the internal auditory canal, which can lead to various symptoms such as pain, hearing loss, or balance issues. This procedure is typically indicated when there is compression of the structures within the canal, often due to tumors, vascular anomalies, or other pathological conditions. The surgery is performed using a middle fossa approach, which involves making a long curvilinear incision over the temporal bone on the affected side of the head. This approach allows the surgeon to access the internal auditory canal effectively. During the procedure, the temporal lobe is carefully retracted to expose the superior surface of the temporal bone, enabling the identification and opening of the internal auditory canal. Once accessed, the surgeon releases any structures that are compressed, thereby relieving the pressure and associated symptoms. After the decompression is completed, the bone flap is replaced and secured, followed by the closure of the soft tissues to ensure proper healing and recovery.
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Decompression of the internal auditory canal is performed for specific indications that may include the following:
The procedure for decompression of the internal auditory canal involves several critical steps, each designed to ensure effective access and relief of pressure within the canal.
After the decompression procedure, patients are typically monitored for any immediate complications. Expected recovery may involve a period of observation in a hospital setting, where healthcare professionals will assess neurological function and manage any postoperative pain. Patients may also receive instructions regarding activity restrictions and follow-up appointments to ensure proper healing. Additional considerations may include monitoring for signs of infection or other complications related to the surgical site.
| Short Descr | RELEASE INNER EAR CANAL | Medium Descr | DECOMPRESSION INTERNAL AUDITORY CANAL | Long Descr | Decompression internal auditory canal | Status Code | Active Code | Global Days | 090 - Major Surgery | PC/TC Indicator (26, TC) | 0 - Physician Service Code | Multiple Procedures (51) | 2 - Standard payment adjustment rules for multiple procedures apply. | Bilateral Surgery (50) | 1 - 150% payment adjustment for bilateral procedures applies. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 2 - Payment restriction for assistants at surgery does not apply to this procedure... | Co-Surgeons (62) | 1 - Co-surgeons could be paid, though supporting documentation is required... | Team Surgery (66) | 0 - Team surgeons not permitted for this procedure. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | APC Status Indicator | Hospital Part B services paid through a comprehensive APC | Type of Service (TOS) | 2 - Surgery | Berenson-Eggers TOS (BETOS) | P1G - Major procedure - Other | MUE | 1 | CCS Clinical Classification | 26 - Other therapeutic ear procedures |
| 22 | Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service. | 51 | Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d). | 62 | Two surgeons: when 2 surgeons work together as primary surgeons performing distinct part(s) of a procedure, each surgeon should report his/her distinct operative work by adding modifier 62 to the procedure code and any associated add-on code(s) for that procedure as long as both surgeons continue to work together as primary surgeons. each surgeon should report the co-surgery once using the same procedure code. if additional procedure(s) (including add-on procedure(s) are performed during the same surgical session, separate code(s) may also be reported with modifier 62 added. note: if a co-surgeon acts as an assistant in the performance of additional procedure(s), other than those reported with the modifier 62, during the same surgical session, those services may be reported using separate procedure code(s) with modifier 80 or modifier 82 added, as appropriate. | GC | This service has been performed in part by a resident under the direction of a teaching physician | LT | Left side (used to identify procedures performed on the left side of the body) | RT | Right side (used to identify procedures performed on the right side of the body) |
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