Patient presents with symptoms consistent with overactive bladder (OAB), including urinary urgency, frequency, and nocturia.  The patient reports an average of 10 voids per day and 3 nighttime voids.  Urgency incontinence is also reported, with approximately two episodes of leakage per week.  Symptoms impact quality of life, causing anxiety and disrupting sleep.  The patient denies dysuria, hematuria, and fever.  Physical examination, including pelvic exam, is unremarkable.  No evidence of urinary tract infection (UTI) or other pathology was found on urinalysis.  Assessment: Overactive bladder syndrome (OAB).  Differential diagnoses considered included UTI, interstitial cystitis, and stress incontinence.  Based on patient history, symptoms, and negative urinalysis, OAB is the most likely diagnosis.  Plan:  Conservative management will be initiated, including bladder training, pelvic floor exercises, and lifestyle modifications such as limiting caffeine and fluid intake before bedtime.  Patient education regarding OAB management strategies provided.  Follow up scheduled in four weeks to assess symptom improvement.  ICD-10 code N32.81, Overactive bladder.  Medical billing codes will reflect evaluation and management (E/M) services provided and diagnosis codes for OAB.