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Code deleted, see 55874.

Official Description

Transperineal placement of biodegradable material, peri-prostatic (via needle), single or multiple, includes image guidance

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 0438T involves the transperineal placement of biodegradable material, specifically a hydrogel spacer, in the peri-prostatic area. This procedure is primarily performed to create a protective barrier between the prostate gland and the anterior rectum prior to the initiation of radiation therapy for prostate cancer. The hydrogel spacer serves a critical function by pushing the rectum away from the prostate, thereby minimizing the risk of radiation toxicity and damage to the rectal tissue during external beam radiotherapy or brachytherapy. The placement of this spacer is guided by transrectal ultrasound, which is utilized to visualize the targeted area in both longitudinal and transverse planes. This imaging technique ensures accurate identification of the perirectal fat located between Denonvilliers’ fascia and the anterior rectal wall, facilitating precise needle placement. An 18 gauge needle is then inserted through the perineum into the designated area, and a small volume of saline is injected to confirm the correct placement and to allow for hydrodissection of the space. Following this, syringes containing the biodegradable hydrogel material are connected to the needle and injected under real-time ultrasound guidance. Once the placement is confirmed to be satisfactory, the needle is withdrawn. The hydrogel material solidifies rapidly into a soft, firm substance within seconds of injection, providing effective protection for approximately three months. After this period, the hydrogel biodegrades, liquefies, and is subsequently absorbed by the body, with the remnants being excreted in the urine.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The transperineal placement of biodegradable material, as described by CPT® Code 0438T, is indicated for the following conditions:

  • Prostate Cancer This procedure is performed as a preparatory step prior to radiation therapy, specifically to protect the rectal tissue from radiation damage during treatment.

2. Procedure

The procedure begins with the identification of the targeted area using transrectal ultrasound, which is performed in both longitudinal and transverse planes. This imaging technique allows the physician to visualize the perirectal fat located between Denonvilliers’ fascia and the anterior rectal wall. Once the appropriate site is confirmed, an 18 gauge needle is carefully inserted through the perineum and directed into the targeted area. To ensure correct placement of the needle, a small amount of saline is injected. This saline injection serves two purposes: it confirms the needle's position and facilitates hydrodissection of the space, creating a suitable environment for the subsequent injection of the biodegradable material. After confirming the needle's placement, syringes containing the biodegradable hydrogel material are connected to the needle. Under real-time ultrasound guidance, the hydrogel is injected into the designated area. The physician monitors the injection closely to ensure that the material is placed accurately. Once the injection is complete and satisfactory placement of the hydrogel spacer is confirmed, the needle is withdrawn. The hydrogel material rapidly solidifies into a soft, firm substance within seconds of injection, providing immediate protection. This spacer remains effective for approximately three months, after which it biodegrades, liquefies, and is absorbed by the body, with the remnants being excreted in the urine.

3. Post-Procedure

After the transperineal placement of the biodegradable material, patients are typically monitored for any immediate complications or adverse effects. It is essential to provide post-procedure care instructions, which may include recommendations for activity restrictions and signs of potential complications to watch for, such as infection or unusual discomfort. Patients can generally expect a recovery period during which the hydrogel spacer will remain effective in protecting the rectal tissue from radiation exposure. As the hydrogel biodegrades over approximately three months, patients should be informed that the material will be absorbed by the body and excreted in the urine. Follow-up appointments may be scheduled to assess the effectiveness of the procedure and to monitor the patient's overall treatment progress.

Short Descr TPRNL PLMT BIODEGRDABL MATRL
Medium Descr TPRNL PLMT BIODEGRADABLE MATRL PERIPROSTATIC
Long Descr Transperineal placement of biodegradable material, peri-prostatic (via needle), single or multiple, includes image guidance
Status Code Carriers Price the Code
Global Days YYY - Carrier Determines Whether Global Concept Applies
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Procedure or Service, Multiple Reduction Applies
Berenson-Eggers TOS (BETOS) P5E - Ambulatory procedures - other
MUE Not applicable/unspecified.
Date
Action
Notes
2017-12-31 Deleted Code deleted, see 55874.
2017-01-01 Added First appearance in codebook.
2016-07-01 Added Code Added.
Code
Description
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