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F44.9
ICD-10-CM
Conversion Disorder

Understanding Conversion Disorder (Functional Neurological Symptom Disorder) diagnosis, clinical features, and ICD-10-CM coding. Find information on hysteria and psychogenic non-epileptic seizures for accurate healthcare documentation and medical billing. Learn about symptoms, treatment, and prognosis of Functional Neurological Disorder (FND). Explore resources for clinicians, patients, and healthcare professionals dealing with Conversion Disorder.

Also known as

Functional Neurological Disorder
Hysteria
Psychogenic Disorder

Diagnosis Snapshot

Key Facts
  • Definition : Mental condition causing physical symptoms like paralysis or blindness, without a physical explanation.
  • Clinical Signs : Neurological symptoms (weakness, numbness, seizures, vision problems) inconsistent with known diseases.
  • Common Settings : Outpatient clinics, neurology departments, psychiatry consultations, psychotherapy settings.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC F44.9 Coding
F44

Dissociative and conversion disorders

Mental disorders involving disruptions of memory, consciousness, identity, or perception.

F40-F48

Neurotic, stress-related, and somatoform disorders

Mental disorders characterized by anxiety, physical symptoms, and emotional distress.

F01-F99

Mental and behavioural disorders

Wide range of mental health conditions affecting thoughts, feelings, and behavior.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the diagnosis Conversion Disorder?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Neurological symptoms without organic cause.
Preoccupation with serious illness despite reassurance.
Intentionally fabricated or induced illness.

Documentation Best Practices

Documentation Checklist
  • Rule out neurological/medical causes (ICD-10 F44.4)
  • Document symptom onset, duration, and impact (DSM-5 300.11)
  • Describe specific functional impairments (e.g., paralysis, blindness)
  • Note psychological stressors and link to symptoms
  • Include mental status exam findings and history

Coding and Audit Risks

Common Risks
  • Symptom Specificity

    Coding requires specific neurological deficits documented. Vague or inconsistent symptoms may lead to inaccurate coding or downcoding.

  • Ruling Out Medical

    Thorough documentation of ruling out underlying medical conditions is crucial. Lack of this can cause coding errors and compliance issues.

  • Comorbidity Coding

    Conversion disorder often coexists with anxiety/depression. Accurate capture of all relevant diagnoses is critical for appropriate reimbursement.

Mitigation Tips

Best Practices
  • Rule out organic causes (ICD-10 F44.4, DSM-5 300.11) improve CDI
  • Document clear psychological stressors for accurate coding (F44.x)
  • Interdisciplinary care: neurology, psychiatry, PT, OT for compliance
  • CBT, physical therapy for symptom management, healthcare compliance
  • Patient education on disorder, prognosis reduces healthcare costs

Clinical Decision Support

Checklist
  • Rule out neurological disease (ICD-10 F44.4, DSM-5 300.11)
  • Symptom incompatibility with neurological exam
  • Assess for psychological stressors/trauma
  • Document symptom onset, course, impact
  • Consider referral to mental health (ICD-10 Z codes)

Reimbursement and Quality Metrics

Impact Summary
  • Conversion Disorder (Functional Neurological Symptom Disorder) reimbursement hinges on accurate ICD-10 coding (F44.x) and thorough documentation of symptom manifestation, impacting payment and denial rates.
  • Coding quality directly affects CMI for Conversion Disorder, influencing hospital case mix index and resource allocation.
  • Timely and specific documentation of FND symptoms is crucial for appropriate DRG assignment and minimizing claim denials.
  • Accurate Conversion Disorder coding supports valid hospital quality reporting metrics regarding functional neurological disorders.

Streamline Your Medical Coding

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Frequently Asked Questions

Common Questions and Answers

Q: How can I differentiate Conversion Disorder (Functional Neurological Symptom Disorder) from true neurological conditions in my clinical practice?

A: Differentiating Conversion Disorder, also known as Functional Neurological Symptom Disorder (FND), from true neurological conditions requires a thorough neurological examination focusing on positive clinical signs suggestive of FND. These signs, unlike hard neurological deficits, are often inconsistent and incongruent with known neurological pathways. For example, Hoover's sign can help detect functional weakness in the leg, while inconsistent sensory findings or non-anatomical distributions might suggest a non-organic cause. Additionally, consider the patient's psychosocial history and stressors, as these can contribute to FND. While imaging and other investigations can help rule out organic disease, a diagnosis of FND is primarily clinical. Explore how specific neurological examination techniques can aid in the diagnosis of Conversion Disorder and consider implementing a structured assessment process for patients presenting with neurological symptoms. Learn more about the utility of the DSM-5 criteria for Conversion Disorder in distinguishing it from neurological disorders.

Q: What are the evidence-based treatment options for Conversion Disorder (Functional Neurological Symptom Disorder) and how can I integrate them into my patient care?

A: Evidence-based treatment for Conversion Disorder (Functional Neurological Symptom Disorder or FND) involves a multidisciplinary approach, often including physical therapy, occupational therapy, and psychotherapy. Physical therapy can address functional motor symptoms, occupational therapy can help patients regain functional independence, and psychotherapy, particularly Cognitive Behavioral Therapy (CBT), can assist patients in understanding and managing the underlying psychological factors contributing to their symptoms. Education about the diagnosis is crucial, as it helps patients understand that their symptoms are real, despite not having an identifiable organic cause. Consider implementing a collaborative care model involving neurologists, psychiatrists, and therapists to provide comprehensive care. Explore how CBT techniques, such as identifying and modifying maladaptive thoughts and behaviors, can be integrated into the treatment plan for Conversion Disorder. Learn more about recent research on the efficacy of different treatment modalities for FND.

Quick Tips

Practical Coding Tips
  • Code F44.4-F44.9 for DSM-5
  • Document symptom onset,duration
  • Rule out organic causes clearly
  • Specify symptom type in diagnosis
  • Consider Z codes for stressors

Documentation Templates

Patient presents with symptoms suggestive of Conversion Disorder (Functional Neurological Symptom Disorder), also previously referred to as hysteria or a psychogenic disorder.  The presenting problem includes [specific symptom e.g.,  sudden onset of blindness, paralysis, non-epileptic seizures, sensory loss, abnormal movements, speech disturbances].  These symptoms are not fully explained by a known neurological or medical condition.  A comprehensive neurological examination, including [mention specific tests performed, e.g., cranial nerve assessment, motor strength testing, sensory examination, reflex testing], revealed inconsistencies and findings incompatible with recognized neurological pathways.  Differential diagnosis considered and ruled out [list specific differential diagnoses, e.g., multiple sclerosis, stroke, epilepsy, myasthenia gravis] based on [state the basis for exclusion, e.g., negative MRI brain, normal EEG, negative serological tests].  Symptom onset follows [describe potential trigger, e.g., recent significant stressor, emotional trauma, psychological conflict].  Mental status examination reveals [describe mental status findings, e.g., patient alert and oriented, intact cognition, possible signs of anxiety or depression].  Diagnostic criteria for Conversion Disorder per DSM-5 appear to be met.  ICD-10 code F44.4 (Conversion Disorder with motor symptom or deficit) or other appropriate F44 code will be applied depending on the specific manifestation of the disorder.  Treatment plan includes referral to [specify referral, e.g., psychiatry, psychology, physical therapy, occupational therapy] for psychotherapy, specifically focusing on stress management and coping mechanisms.  Patient education regarding the diagnosis and prognosis of functional neurological disorders was provided.  Follow-up scheduled in [time frame] to monitor symptom progression and treatment efficacy.  Medical necessity for all services rendered is documented.