Authorization notes: pre-procedure grading and post-op imaging

Prior authorization may be required and is tied to medical necessity. Document the pre-procedure VUR grade and the planned bulking agent (e.g., Deflux, Macroplastique, PPC) when requesting authorization. Post-operative imaging plans should be specified (voiding cystourethrogram [VCUG] at approximately 3 months is standard; renal ultrasound often at 3 months and 1 year).

• Pre-procedure: record VUR grade and intended agent
• Post-op imaging: VCUG ~3 months; renal ultrasound commonly at ~3 months and ~1 year

Prior authorization recommended for post-transplant and pediatric VUR injections

Prior authorization is recommended for endoscopic injection procedures in special populations (e.g., post-renal-transplant patients and pediatric post-transplant VUR cases) due to variable success rates and higher risk of complications such as ureteral obstruction.

• Post-transplant VUR: variable radiologic and clinical success; higher obstruction risk reported
• Pediatric transplant recipients: lower pooled success and notable obstruction rates — consider prior review

Treatment failure after 3 sessions

If a member does not improve after three treatment sessions, they are considered a treatment failure and further endoscopic injections are not considered medically necessary.

• Limit: no additional injections beyond 3 unsuccessful sessions

Potential denial trigger: poor documented radiologic/clinical response

Claims may be denied or require further review when there is poor or absent documented radiologic or clinical response to prior injections (e.g., lack of documented VUR resolution on VCUG or continued symptomatic/recurrent febrile UTIs). Ensure clear documentation of clinical benefit.

• Missing or negative post-op VCUG documenting persistent VUR
• Ongoing febrile UTIs without documented treatment response

Obstruction risk may trigger denial or further review

Document and monitor for uretero-vesical junction obstruction (UVJO) or other obstruction after certain agents (notably PPC/Vantris); presence or high risk of obstruction may prompt denial, request for additional interventions, or further clinical review.

• Late UVJO has been reported after PPC with requirement for re-implantation in some cases
• Document plans for long-term follow-up and management of suspected obstruction

Authorization/Denial notes

Authorization and denial decisions are based on the documented clinical indications, imaging results, prior therapies, and policy criteria. Providers should reference the Clinical Policy Bulletin and recent policy history when submitting requests.

• Reference Clinical Policy Bulletin for full documentation requirements and CPT/HCPCS lists
• Policy effective date and review history may be considered during review

Coding documentation

Include specific CPT and HCPCS codes on claims and authorization requests; link codes to the medical necessity rationale and documentation. Use CPT 52327 for subureteric injection and applicable HCPCS (e.g., L8604, L8606) for injectable bulking agents when covered.

• Covered CPT example: 52327 (cystourethroscopy with subureteric injection)
• Relevant HCPCS examples: L8604 (Dx/HA), L8606 (synthetic implant)

Required documentation: post-op VCUG and ultrasound

Required documentation includes radiologic evidence of VUR pre-procedure (e.g., VCUG), records of symptomatic UTIs, prior conservative therapy attempts, and post-operative imaging. Specifically, a post-operative VCUG at about 3 months and renal ultrasound follow-up (often at ~3 months and ~1 year) should be provided.

• Pre-procedure: VCUG documenting VUR grade; clinical history of febrile UTIs
• Post-procedure: VCUG ~3 months showing resolution or persistent reflux
• Renal ultrasound: commonly at ~3 months and ~1 year as applicable

Required clinical documentation

Clinical documentation should include radiologic confirmation of VUR and grading, history and frequency of symptomatic or febrile UTIs, details of prior conservative management and responses, and operative notes describing injected agent and volumes.

• VCUG reports with VUR grade
• UTI episode documentation (dates, cultures, treatments)
• Evidence of failed conservative therapy (antibiotic prophylaxis, CIC)
• Operative note: agent, volume, technique, laterality

Documentation and policy history

Providers should consult the policy history and Clinical Policy Bulletin for the complete set of documentation, coding lists, and any updates; review dates and past revisions are relevant to authorization decisions.

• See Clinical Policy Bulletin for full documentation checklist and code lists
• Check policy review dates (Effective 08/21/2001; last review noted) for current criteria

Conservative therapy first in many pediatric cases

Conservative therapy (e.g., prophylactic antibiotics, observation, clean intermittent catheterization) should generally be attempted first in many pediatric cases; endoscopic injection is appropriate when conservative measures have failed or per listed indications (and may be first-line for select low-grade cases per clinician judgment and policy criteria).

• Conservative measures must be documented as tried and failed unless policy-listed exceptions apply
• Endoscopic injection may be considered first-line for lower-grade VUR in select situations

Step therapy

The policy does not specify additional formal step-therapy requirements beyond the expectation that conservative treatments be attempted and documented; include prior therapy details in requests to expedite review.

• No other step-therapy protocols specified in these policy excerpts
• Document prior conservative therapy to demonstrate medical necessity