Summary & Overview
CPT 51700: Bladder Irrigation and Instillation
CPT code 51700 represents bladder irrigation and instillation, a procedure that delivers medication directly into the bladder via a catheter. This service matters nationally because it supports management of bladder conditions—such as interstitial cystitis and recurrent urinary tract infections—where local therapy can reduce symptoms and target mucosal inflammation without systemic exposure. The code applies across outpatient settings where catheter access is available.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and typical sites of service, plus benchmarking and policy-relevant notes where available. The publication summarizes how 51700 is used in practice, common billing considerations, and variations in payer coverage and coding guidance.
This summary is designed for clinicians, coding professionals, and policy analysts seeking a national-level briefing on CPT code 51700: what it represents, why it matters for patient care and cost containment, and where stakeholders should focus review when auditing or setting coverage policy. Data not available in the input for specific utilization metrics and payer-specific reimbursement rates.
Billing Code Overview
CPT code 51700 describes bladder irrigation and instillation, procedures that deliver medication or therapeutic solutions directly into the bladder via a catheter. These instillations are commonly used to administer anti‑inflammatory agents or antiseptic solutions for conditions such as interstitial cystitis, recurrent urinary tract infections, or to manage bladder mucosal inflammation.
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Service type: Office or clinic procedural treatment involving bladder irrigation and medication instillation
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Typical site of service: Outpatient clinic, physician office, ambulatory surgery center, or hospital outpatient department
Data not available in the input for Associated Taxonomies, ICD-10 Diagnoses, and Related Codes.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult woman with recurrent bladder pain and urinary urgency due to interstitial cystitis or a patient with hemorrhagic cystitis following chemotherapy or pelvic radiation. The patient commonly presents to an outpatient urology clinic, an ambulatory surgery center, or an inpatient ward with persistent bladder symptoms despite oral therapy. After assessment, a clinician performs 51700 (bladder irrigation and instillation) to deliver an anti‑inflammatory, anesthetic, or hemostatic agent directly into the bladder via an indwelling urethral or suprapubic catheter. The clinical workflow includes informed consent, verification of medication and concentration, catheter access and bladder drainage, instillation of the prescribed solution, a dwell period as indicated, and observation for immediate adverse effects such as urinary retention or allergic reaction. Documentation includes indication, medication name and dose, catheter route, volume instilled, dwell time, patient tolerance, and any complications. Typical sites of service are outpatient urology clinics, ambulatory surgery centers, emergency departments, and inpatient hospital units when bladder instillation is required for acute hemorrhage control or severe cystitis.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day |