@Sedtzl
I looked this up and found this
While hoarding disorder is classified as being part of the obsessive-compulsive disorder (OCD) spectrum, which is an anxiety disorder, hoarding disorder is a distinct condition.
Previously, the Diagnostic and Statistical Manual of Mental Disorders (DSM), the standard classification of mental disorders produced by the American Psychiatric Association, classified hoarding as a subtype of OCD.
However, healthcare providers were encountering people with hoarding behaviors who didn’t have any other mental health conditions. After more research, hoarding disorder was included as an isolated condition, in the OCD spectrum, in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-V), which is the most recent edition.