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    OpenPayerBilling CodesAnxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disordersICD-10-CM f45-somatoform-disorders
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    ICD-10-CM Code For Somatoform Disorders: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group F45 includes disorders characterized by physical symptoms that are not fully explained by a medical condition and encompass somatization, somatic symptom disorder, and related presentations such as pain and persistent physical complaints. These ICD-10-CM diagnosis codes are used to document clinical encounters where somatic symptoms predominate, capturing severity, symptom persistence, and associated functional impact relevant to this group. Accurate coding within the ICD-10-CM F45 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM F45: Somatoform Disorders Overview

    The Somatoform disorders group includes conditions characterized by physical symptoms that suggest a medical condition but are not fully explained by a general medical condition, substance use, or another mental disorder. These diagnoses target symptoms across body systems, often involving pain, gastrointestinal, or neurological complaints without clear organic cause. Accurate coding matters for appropriate clinical documentation and reimbursement because it reflects diagnostic complexity and supports claim adjudication.

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    When to Use

    Use a code from this group when a clinician documents persistent or recurrent physical symptoms that cannot be fully explained by a general medical condition and when the symptoms cause significant distress or impairment. Select the specific code based on documented symptom type, duration, severity, and any associated behavioral or psychological features.

    ICD-10-CM Codes

    10 rows

    ICD-10-CM CodeDescription
    F45.0Somatization disorder
    F45.1Undifferentiated somatoform disorder
    F45.20Hypochondriacal disorder, unspecified
    F45.21Hypochondriasis
    F45.22Body dysmorphic disorder
    F45.29Other hypochondriacal disorders
    F45.41Pain disorder exclusively related to psychological factors
    F45.42Pain disorder with related psychological factors
    F45.8Other somatoform disorders
    F45.9Somatoform disorder, unspecified

    DRG Codes

    1 rows

    DRG CodeDescription
    882Neuroses Except Depressive

    Typical Clinical Scenarios

    • An adult patient presents to primary care with a 6–12 month history of multiple, recurrent, medically unexplained somatic complaints (headache, gastrointestinal pain, and fatigue) that have led to frequent clinic visits and extensive negative diagnostic testing; symptoms are persistent and cause significant distress and impairment but do not meet criteria for a neurological or gastrointestinal disorder, so a somatic symptom disorder diagnosis from this group is assigned. Typical codes: F45.1, F45.21
    • A young adult arrives at the emergency department with acute, transient neurological symptoms (sudden limb weakness and altered movement) after a stressful interpersonal event; exam and imaging are unrevealing and symptoms are judged to be of psychogenic origin consistent with conversion disorder, prompting assignment of the appropriate functional neurological symptom diagnosis. Typical codes: F45.0, F45.9
    • A middle-aged patient with a long-standing pattern of health anxiety persistently fears having a serious illness despite reassurance and repeated negative workups, leading to excessive health-related behaviors and impairment; the clinician documents a chronic somatoform presentation focused on fear of illness rather than numerous physical complaints, and assigns the health anxiety/illness anxiety type code. Typical codes: F45.22, F45.29

    Related Codes

    F40-PHOBIC-ANXIETY-DISORDERS

    ICD-10-CM Code For Phobic Anxiety Disorders: Group Overview

    F41-OTHER-ANXIETY-DISORDERS

    ICD-10-CM Code For Other Anxiety Disorders: Group Overview

    F42-OBSESSIVE-COMPULSIVE-DISORDER

    ICD-10-CM Code For Obsessive-Compulsive Disorder: Group Overview

    F43-REACTION-TO-SEVERE-STRESS

    ICD-10-CM Code For Reaction To Severe Stress And Adjustment Disorders: Group Overview

    F44-DISSOCIATIVE-AND-CONVERSION-DISORDERS

    ICD-10-CM Code For Dissociative And Conversion Disorders: Group Overview

    F48-OTHER-NONPSYCHOTIC-MENTAL-DISORDERS

    ICD-10-CM Code For Other Nonpsychotic Mental Disorders: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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