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ICD-10 Guide
ICD-10 CodesF50.01

F50.01

Billable

Anorexia nervosa, restricting type

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 F50.01 is a billable code used to indicate a diagnosis of anorexia nervosa, restricting type.

Key Diagnostic Point:

Anorexia nervosa, restricting type, is a serious eating disorder characterized by an intense fear of gaining weight and a distorted body image, leading to self-imposed starvation and excessive weight loss. Individuals with this condition often engage in restrictive eating behaviors, avoiding food intake and exercising excessively. The disorder can manifest in various ways, including severe caloric restriction, avoidance of certain food groups, and a preoccupation with food, dieting, and body size. Clinically, patients may present with significant weight loss, nutritional deficiencies, and a range of psychological symptoms such as anxiety, depression, and social withdrawal. The diagnosis is typically made based on clinical evaluation, including a thorough history and physical examination, alongside standardized diagnostic criteria. Treatment often involves a multidisciplinary approach, including nutritional rehabilitation, psychotherapy, and medical management to address both the physical and psychological aspects of the disorder. Early intervention is crucial to improve outcomes and reduce the risk of long-term health complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between anorexia nervosa types (restricting vs. binge-eating/purging)
  • Need for comprehensive documentation of weight history and psychological assessment
  • Potential overlap with other eating disorders, requiring careful clinical evaluation
  • Variability in presentation and severity among patients

Audit Risk Factors

  • Inadequate documentation of weight and height measurements
  • Failure to document psychological assessments and treatment plans
  • Lack of evidence for medical necessity of treatment
  • Inconsistent coding of comorbid conditions

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed psychiatric evaluations, treatment plans, and progress notes are essential.

Common Clinical Scenarios

Patients presenting with severe anxiety, depression, and social withdrawal alongside weight loss.

Billing Considerations

Psychiatric assessments should include risk factors for suicide and self-harm.

Nutrition

Documentation Requirements

Nutritional assessments, dietary plans, and progress notes on weight restoration.

Common Clinical Scenarios

Patients requiring nutritional rehabilitation and monitoring of dietary intake.

Billing Considerations

Documentation must reflect the patient's response to dietary interventions and any complications.

Coding Guidelines

Inclusion Criteria

Use F50.01 When
  • According to ICD
  • 10 guidelines, F50
  • 01 should be used when the patient meets the criteria for anorexia nervosa, restricting type, including significant weight loss and restrictive eating behaviors

Exclusion Criteria

Do NOT use F50.01 When
  • Exclusion criteria include other specified eating disorders and conditions that may mimic anorexia

Related ICD-10 Codes

Related CPT Codes

97802CPT Code

Medical nutrition therapy, individual, face-to-face, each 15 minutes

Clinical Scenario

Used for patients receiving nutritional counseling as part of their treatment plan.

Documentation Requirements

Document the patient's nutritional assessment and treatment goals.

Specialty Considerations

Nutrition specialists should ensure that the therapy aligns with the patient's overall treatment plan.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of anorexia nervosa types, improving the accuracy of diagnosis and treatment tracking.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of anorexia nervosa types, improving the accuracy of diagnosis and treatment tracking.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of anorexia nervosa types, improving the accuracy of diagnosis and treatment tracking.

Resources

Clinical References

  • •
    National Eating Disorders Association

Coding & Billing References

  • •
    National Eating Disorders Association

Frequently Asked Questions

What is the difference between anorexia nervosa, restricting type and binge-eating/purging type?

Anorexia nervosa, restricting type involves significant weight loss through restrictive eating and does not include binge-eating or purging behaviors, while the binge-eating/purging type includes episodes of binge-eating followed by purging.