Atony of bladder

This code represents a condition where the bladder loses its normal muscle tone, resulting in an inability to contract effectively and completely empty. This flaccid state leads to urinary retention and often an enlarged bladder. It is a form of neurogenic bladder dysfunction.

Use this code when documentation explicitly states "atony of bladder" or describes a flaccid, non-contractile bladder causing urinary retention, often due to nerve damage or prolonged overdistension. This diagnosis is supported by findings such as a large post-void residual volume or a hypotonic bladder on urodynamic studies.

• Differentiate from other forms of neurogenic bladder; this code specifically denotes loss of tone.
• Do not use for temporary urinary retention without documented loss of bladder tone.
• Consider sequencing with an underlying cause, such as spinal cord injury or diabetic neuropathy, if applicable.