In simple words: Bedwetting or daytime wetting in children and sometimes adults, not caused by a medical problem or medication. It's considered normal until around age 5, but can sometimes persist beyond this age for various reasons.

Enuresis not due to a substance or known physiological condition encompasses primary or secondary enuresis of nonorganic origin, including functional or psychogenic enuresis, and urinary incontinence of nonorganic origin.It excludes enuresis NOS (R32), breath-holding spells (R06.89), gender identity disorder of childhood (F64.2), Kleine-Levin syndrome (G47.13), obsessive-compulsive disorder (F42.-), and sleep disorders (F51.-).

Example 1: A 6-year-old child who has never achieved consistent nighttime dryness and has no underlying medical condition would be diagnosed with F98.0 (primary enuresis)., An 8-year-old child who was previously dry for at least six months but begins wetting the bed again following a stressful life event, such as the death of a family member, could be coded as F98.0 (secondary enuresis)., A 10-year-old child experiences daytime wetting, along with nighttime wetting, without any identified physical cause, and may be diagnosed with F98.0, which encompasses both nocturnal and diurnal enuresis.

Documentation should include details about the frequency, duration, and timing of enuresis episodes, as well as any associated symptoms, relevant medical history, family history, results of physical examination and urinalysis, and any psychological or behavioral factors contributing to the condition.It is crucial to rule out other medical conditions before assigning F98.0.