Alternative diagnoses for false positive cases of hypochondriasis (n=17) and dysmorphophobia (n=11).
| Hypochondriasis | n | Dysmorphophobia | n |
| Dysmorphophobia | 11 | Excoriation (skin-picking) disorder | 3 |
| Psychotic disorder | 4 | Factitial dermatitis | 3 |
| Somatisation disorder | 2 | Eating disorder, unspecified | 3 |
| Somatoform disorder, unspecified | 2 | Hypochondriasis | 2 |
| Obsessive-compulsive disorder | 2 | Psychotic disorder | 2 |
| Major depressive disorder | 2 | Pervasive developmental disorder | 2 |
| Borderline personality disorder | 2 | Delusional disorder | 1 |
| General anxiety disorder | 1 | Somatisation disorder | 1 |
| Anxiety disorder, unspecified | 1 | Obsessive-compulsive disorder | 1 |
| Bipolar disorder | 1 | Trichotillomania | 1 |
| Pervasive developmental disorder | 1 | Social phobia | 1 |
| Substance dependence disorder | 1 | Generalised anxiety disorder | 1 |
| Acute stress reaction | 1 | Post-traumatic stress disorder | 1 |
| Gender identity disorder | 1 | ||
| Borderline personality disorder | 1 |
Numbers do not add up to the total of false positive cases (n=17 for hypochondriasis and n=11 for dysmorphophobia) given that, for multiple cases, raters suggested more than one alternative diagnosis.