Patient presents with symptoms consistent with hemorrhagic cystitis, including gross hematuria, dysuria, urinary frequency, and urgency.  The patient reports [Insert onset and duration of symptoms, e.g.,  sudden onset of symptoms two days ago].  Pain is described as [Insert patient's description of pain, e.g., burning or sharp] and located in the [Insert location, e.g., suprapubic area or lower abdomen].  Review of systems reveals [Insert pertinent positive and negative findings, e.g.,  no fever, chills, or flank pain. Patient denies history of recent upper respiratory infection].  Physical examination reveals [Insert relevant physical exam findings, e.g.,  suprapubic tenderness on palpation, no costovertebral angle tenderness].  Differential diagnosis includes urinary tract infection, bladder cancer, urolithiasis, and medication-induced hemorrhagic cystitis.  Considering the patient's presentation and history, including [Insert relevant risk factors, e.g., recent chemotherapy with cyclophosphamide or radiation therapy to the pelvic region, history of BK virus infection], hemorrhagic cystitis is the leading diagnosis.  Urinalysis demonstrates [Insert urinalysis results, e.g.,  hematuria, pyuria, and presence of red blood cells].  Cystoscopy is [Insert if performed or planned, e.g., planned to visualize the bladder mucosa and rule out other pathologies].  Treatment plan includes [Insert treatment details, e.g.,  hydration, pain management with analgesics, bladder irrigation if indicated, and discontinuation of causative medications if applicable.  Monitoring for complications such as urinary tract obstruction and renal insufficiency will be implemented].  Patient education provided regarding symptom management, fluid intake, and potential complications.  Follow-up scheduled in [Insert timeframe, e.g., one week] to reassess symptoms and evaluate treatment response.  ICD-10 code N30.0, hemorrhagic cystitis, is assigned.