Hypochondriasis
Billable / specific
F45.21 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.
Inclusion terms
Applicable to
- Hypochondriacal neurosis
- Illness anxiety disorder
Includes (from F45)
- disorders of psychological development
Excludes2
Not included here — may be reported together when both conditions exist.
- delusional dysmorphophobia (F22) (from F45.2)
- fixed delusions about bodily functions or shape (F22) (from F45.2)
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99) (from F45)
- dissociative and conversion disorders (F44.-) (from F45)
- factitious disorders (F68.1-, F68.A) (from F45)
- hair-plucking (F63.3) (from F45)
- lalling (F80.0) (from F45)
- lisping (F80.0) (from F45)
- malingering [conscious simulation] (Z76.5) (from F45)
- nail-biting (F98.8) (from F45)
- psychological or behavioral factors associated with disorders or diseases classified elsewhere (F54) (from F45)
- sexual dysfunction, not due to a substance or known physiological condition (F52.-) (from F45)
- thumb-sucking (F98.8) (from F45)
- tic disorders (in childhood and adolescence) (F95.-) (from F45)
- Tourette's syndrome (F95.2) (from F45)
- trichotillomania (F63.3) (from F45)
Also known as
- Hypochondriacal neurosis
- Illness anxiety disorder
- Disorder, anxiety, illness
- Disorder, hypochondriacal, neurosis
- Disorder, identity, illness anxiety
- Hypochondria, hypochondriac, hypochondriasis
- Neurosis, neurotic, hypochondriacal
- Nosomania
- Psychoneurosis, psychoneurotic, hypochondriacal
Parent code
- F45.2Hypochondriacal disordersHeader