N31: Neuromuscular dysfunction of bladder, not elsewhere classified
N31.1: Reflex neuropathic bladder, not elsewhere classified
The bladder is like a balloon. There is a hollow space on the inside. This hollow space is surrounded by the bladder wall. There is a muscle in the bladder wall. When the muscle in the bladder wall contracts, the urine is squeezed out of the bladder and out of the body. There are two sphincter muscles on the urethra. One where the urethra joins the bladder, and one that surrounds the urethra. When these sphincter muscles contract the urine is retained in the body.
The bladder’s sphincter muscles and the muscles in the bladder wall are controlled by nerves. Many nerves run from the spinal cord and brain to the organs, skin and muscles in the body. If the nerves, brain or spinal cord are damaged, the sphincter muscles in the bladder can no longer work properly. Nerves, brain and spinal cord can be damaged, for example, by other conditions or following surgery.
Your bladder’s sphincter muscles and the muscles in your bladder wall are not working in a properly coordinated manner. This frequently interrupts urination. People often have difficulty starting to urinate.
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If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.