2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Genitourinary System 580-629 > Other Diseases Of Urinary System 590-599 > Other Disorders Of Bladder 596.* > 2008 ICD-9-CM Diagnosis 596.51 Hypertonicity of bladder  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 596.51 can be accessed here. Urgency to URINATION, with or without urge incontinence, usually with frequency and NOCTURIA. 596.51 is a specific code that can be used to specify a diagnosis 596.51 contains 3 index entries View the ICD-9-CM Volume 1 596.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 596.51 also known as: Hyperactivity Overactive bladder Index entries containing 596.51: Hyperactive, hyperactivity 314.01 bladder 596.51 Hypertonicity bladder 596.51 Overactive - see also Hyperfunction bladder 596.51