ICD-10 Code F42.3 – Hoarding Disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F42.3 – Hoarding disorder
What it is
F42.3 identifies hoarding disorder, a mental health condition marked by persistent difficulty discarding possessions, regardless of their actual value. The accumulation creates clutter that limits normal use of living spaces.
Clinical signs
Common signs include excessive saving, strong distress when discarding items, and clutter that interferes with rooms or daily activities. Insight may be limited; clinical features vary, so refer to documentation.
When to use this code
Use F42.3 when the record clearly documents hoarding disorder as the diagnosis. Code it for visits focused on assessment, follow-up, or management of clutter-related impairment, safety concerns, or functional disruption. Check documentation if the note describes collecting behavior without a confirmed disorder.
Do not use for
Do not use this code for ordinary collecting, clutter from poor housekeeping alone, or nonspecific obsessive-compulsive symptoms. If the chart does not support hoarding disorder, check documentation.
Coding tip
Confirm that the diagnosis is explicit and that the clutter or saving behavior causes impairment before assigning F42.3.