Accessory kidney
ICD-10 Q63.0 is a billable code used to indicate a diagnosis of accessory kidney.
Accessory kidney, also known as supernumerary kidney, is a congenital anomaly characterized by the presence of an additional kidney that is typically smaller than the normal kidneys. This condition arises during embryonic development when the metanephric blastema, which forms the kidneys, divides abnormally. Accessory kidneys may be located in the normal renal fossa or may be ectopic, situated in an unusual location such as the pelvis or thorax. While many individuals with an accessory kidney remain asymptomatic, some may experience complications such as urinary obstruction, infection, or hypertension. Diagnosis is often made through imaging studies such as ultrasound or CT scans, which can reveal the presence and location of the accessory kidney. Management may vary from observation to surgical intervention, depending on the symptoms and complications present. Understanding the implications of accessory kidneys is crucial in pediatric care, as these anomalies can be associated with other congenital malformations of the urinary system, including renal agenesis, polycystic kidney disease, and bladder exstrophy.
Pediatric documentation should include detailed descriptions of symptoms, imaging results, and any associated congenital anomalies. Growth and developmental assessments may also be relevant.
Common scenarios include a child presenting with recurrent urinary tract infections or hypertension, where imaging reveals an accessory kidney.
Coders should be aware of the potential for associated urinary tract anomalies and ensure that all relevant conditions are documented and coded.
Genetic documentation should include family history, any syndromic associations, and results from genetic testing if applicable.
Scenarios may involve genetic counseling for families with a history of congenital kidney anomalies or syndromes associated with renal malformations.
Consideration should be given to the potential genetic syndromes that may present with accessory kidneys, necessitating thorough documentation.
Used when surgical intervention is required for symptomatic accessory kidney.
Document indications for surgery, imaging findings, and pre-operative assessments.
Pediatric surgeons should provide detailed operative notes to support the procedure.
An accessory kidney may be asymptomatic but can lead to complications such as urinary obstruction or infection. It is essential to monitor renal function and assess for any associated urinary tract anomalies.
