UCR 301: Bladder Tumor Coding — Size, Location, Diagnosis Selection, and Same-Day Instillations

August 21, 2026

In this episode, Scott, Mark, and Dr. Ray Painter revisit the coding and documentation requirements for cystoscopic bladder tumor treatment. They discuss why tumor size—not the size of the resection bed—drives code selection, how multiple tumors are handled, and why documenting the exact bladder location is increasingly important for diagnosis coding. The team also explains when to use malignant, uncertain, or unspecified neoplasm codes, why you should code based on what is known at the time of the procedure, and when a same-day bladder instillation may or may not be separately billable. The key takeaway: bladder tumor coding is highly detail-dependent, and accurate documentation of size, location, diagnosis, and any separately performed services is essential to support reimbursement