Mental, Behavioral and Neurodevelopmental Disorders

ICD-10 Code: F41.1

Generalized Anxiety Disorder

Excessive worry about multiple concerns for ≥6 months with associated symptoms.

Clinical Information

GAD affects 3-6% of adults. Characterized by excessive, difficult-to-control worry about everyday concerns plus ≥3 of: restlessness, fatigue, concentration problems, irritability, muscle tension, sleep disturbance.

Coding Guidelines

  • 1Use when 'generalized anxiety disorder' or 'GAD' documented
  • 2Requires worry for ≥6 months
  • 3Different from panic disorder (F41.0) or social anxiety (F40.10)

Common Uses

  • Psychiatry/primary care management of GAD
  • Medication for chronic excessive worry

Related ICD-10 Codes

F41.9Anxiety disorder, unspecified
F41.0Panic disorder

Documentation Requirements

  • Document 'GAD' or 'generalized anxiety disorder'
  • Duration of symptoms
  • Associated symptoms (restlessness, fatigue, etc.)

Real-World Coding Examples

55-year-old with 2-year history of excessive worry about finances, health, family. Difficulty concentrating, muscle tension. On sertraline. Diagnosis: Generalized anxiety disorder (F41.1)

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Medical coding for Mental, Behavioral and Neurodevelopmental Disorders