Intrinsic sphincter deficiency (ISD)

This code represents a condition characterized by weakness or dysfunction of the internal urethral sphincter, leading to involuntary leakage of urine. It is a common cause of stress urinary incontinence, particularly in women.

Use this code when documentation explicitly states intrinsic sphincter deficiency as the cause of urinary incontinence. This diagnosis is often made after urodynamic studies confirm low urethral closure pressure or maximal urethral pressure.

• Do not confuse with other types of urinary incontinence (e.g., urge, overflow) unless ISD is specifically documented as the underlying cause.
• Always look for documentation of urodynamic findings or a physician's definitive diagnosis of ISD.
• Consider sequencing this code as a secondary diagnosis if another condition (e.g., stress incontinence) is the primary reason for the encounter, but ISD is the underlying etiology.