Somatoform disorders (F45) ICD-10-CM
The F45 code range covers somatoform disorders with 13 ICD-10-CM diagnosis codes. 10 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- dissociative and conversion disorders F44
- factitious disorders F68.1 F68.A
- hair-plucking F63.3
- lalling F80.0
- lisping F80.0
- malingering [conscious simulation] Z76.5
- nail-biting F98.8
- psychological or behavioral factors associated with disorders or diseases classified elsewhere F54
- sexual dysfunction, not due to a substance or known physiological condition F52
- thumb-sucking F98.8
- tic disorders in childhood and adolescence F95
- Tourette's syndrome F95.2
- trichotillomania F63.3
Codes in the F45 Range 13 codes · 10 billable
- F45 Somatoform disordersNon-billable
- F45.0 Somatization disorder
- F45.1 Undifferentiated somatoform disorder
- F45.2 Hypochondriacal disordersNon-billable
- F45.20 Hypochondriacal disorder, unspecified
- F45.21 Hypochondriasis
- F45.22 Body dysmorphic disorder
- F45.29 Other hypochondriacal disorders
- F45.4 Pain disorders related to psychological factorsNon-billable
- F45.41 Pain disorder exclusively related to psychological factors
- F45.42 Pain disorder with related psychological factors
- F45.8 Other somatoform disorders
- F45.9 Somatoform disorder, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the F45 range.
Aerophagy
Spasmodic swallowing of air.
Brain Ischemia
Localized reduction of blood flow to brain tissue due to arterial obstruction or systemic hypoperfusion. This frequently occurs in conjunction with brain hypoxia (HYPOXIA, BRAIN). Prolonged ischemia is associated with BRAIN INFARCTION.
Bruxism
A disorder characterized by grinding and clenching of the teeth.
Dysmenorrhea
Painful menstruation.
Dysuria
Painful URINATION. It is often associated with infections of the lower URINARY TRACT.
Hyperventilation
A pulmonary ventilation rate faster than is metabolically necessary for the exchange of gases. It is the result of an increased frequency of breathing, an increased tidal volume, or a combination of both. It causes an excess intake of oxygen and the blowing off of carbon dioxide.
Hypochondriasis
Preoccupation with the fear of having, or the idea that one has, a serious disease based on the person's misinterpretation of bodily symptoms. (APA, DSM-IV)
Neurocirculatory Asthenia
A clinical syndrome characterized by palpitation, SHORTNESS OF BREATH, labored breathing, subjective complaints of effort and discomfort, all following slight PHYSICAL EXERTION. Other symptoms may be DIZZINESS, tremulousness, SWEATING, and INSOMNIA. Neurocirculatory asthenia is most typically seen as a form of anxiety disorder.
Sleep Bruxism
A sleep disorder characterized by grinding and clenching of the teeth and forceful lateral or protrusive jaw movements. Sleep bruxism may be associated with TOOTH INJURIES; TEMPOROMANDIBULAR JOINT DISORDERS; sleep disturbances; and other conditions.
Somatoform Disorders
Disorders having the presence of physical symptoms that suggest a general medical condition but that are not fully explained by another medical condition, by the direct effects of a substance, or by another mental disorder. The MEDICALLY UNEXPLAINED SYMPTOMS must cause clinically significant distress or impairment in social, occupational, or other areas of functioning. In contrast to FACTITIOUS DISORDERS and MALINGERING, the physical symptoms are not under voluntary control. (APA, DSM-V)
Syncope
A transient loss of consciousness and postural tone caused by diminished blood flow to the brain (i.e., BRAIN ISCHEMIA). Presyncope refers to the sensation of lightheadedness and loss of strength that precedes a syncopal event or accompanies an incomplete syncope. (From Adams et al., Principles of Neurology, 6th ed, pp367-9)
Yawning
An involuntary deep INHALATION with the MOUTH open, often accompanied by the act of stretching.
About the F45 Code Range
The ICD-10 code section F45 covers somatoform disorders, a group of mental health conditions where individuals experience physical symptoms without a clear medical cause. These codes specifically capture disorders characterized by persistent bodily complaints linked to psychological factors rather than physical disease.
This code section includes F45.0 for somatization disorder (also known as Polysomatizing disorder or Briquet's syndrome), describing patients with multiple, recurring physical symptoms. F45.1 is for undifferentiated somatoform disorder, and F45.2 covers hypochondriacal disorders, including F45.21 or hypochondriasis—which is also called illness anxiety disorder and involves excessive worry about having serious diseases. Another key code is F45.22 for body dysmorphic disorder, characterized by obsessive preoccupation with perceived physical flaws. Pain disorders influenced by psychological factors are classified under F45.4, distinguishing between pain solely or partially explained by mental conditions. Lastly, F45.8 and F45.9 include other somatoform disorders and unspecified variants, covering a wide range of psychosomatic symptoms such as psychogenic cough, psychogenic pruritus (itching), and psychogenic voice disorder.
These ICD-10 codes for somatoform disorders help healthcare providers and coders accurately identify and document conditions where psychological factors manifest as physical symptoms, facilitating appropriate diagnosis, treatment planning, and insurance coding.
Questions About This Page
How many billable codes are in the F45 range?
Of the 13 codes in this range, 10 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the F45 range classify?
The range classifies somatoform disorders. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
