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ICD-10 Guide
ICD-10 CodesF50.019

F50.019

Billable

Anorexia nervosa, restricting type, unspecified

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

Code Description

ICD-10 F50.019 is a billable code used to indicate a diagnosis of anorexia nervosa, restricting type, unspecified.

Key Diagnostic Point:

Anorexia nervosa 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. The restricting type of anorexia nervosa is defined by a pattern of behavior that includes limiting food intake and avoiding binge-eating or purging behaviors. Patients may exhibit extreme weight loss, a significantly low body mass index (BMI), and may engage in excessive exercise. The unspecified designation indicates that the clinician has not specified the severity or specific behaviors associated with the disorder. Clinically, anorexia nervosa can lead to severe physical health complications, including electrolyte imbalances, cardiovascular issues, and gastrointestinal problems, as well as psychological effects such as anxiety and depression. Early diagnosis and intervention are crucial for improving outcomes, and treatment often involves a multidisciplinary approach, including nutritional counseling, psychotherapy, and medical management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of symptoms
  • Need for comprehensive documentation to support diagnosis
  • Differentiation from other eating disorders
  • Potential for co-occurring mental health conditions

Audit Risk Factors

  • Inadequate documentation of weight and BMI
  • Failure to document the patient's treatment plan
  • Lack of evidence for the diagnosis in the medical record
  • Misclassification of the type of anorexia nervosa

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed mental health assessments, treatment plans, and progress notes.

Common Clinical Scenarios

Initial evaluation of a patient presenting with severe weight loss and psychological distress.

Billing Considerations

Consideration of comorbid mental health disorders such as depression or anxiety.

Nutrition

Documentation Requirements

Nutritional assessments, dietary plans, and monitoring of weight changes.

Common Clinical Scenarios

Development of a refeeding plan for a patient with anorexia nervosa.

Billing Considerations

Close monitoring of electrolyte levels and physical health during nutritional rehabilitation.

Coding Guidelines

Inclusion Criteria

Use F50.019 When
  • According to ICD
  • 10 guidelines, F50
  • 019 should be used when the specific type of anorexia nervosa is not documented
  • Coders should ensure that the diagnosis is supported by clinical documentation, including weight measurements and psychological evaluations

Exclusion Criteria

Do NOT use F50.019 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

97802CPT Code

Medical nutrition therapy, individual, face-to-face

Clinical Scenario

Used for patients with anorexia nervosa requiring nutritional counseling.

Documentation Requirements

Documentation of the patient's nutritional assessment and treatment plan.

Specialty Considerations

Nutrition specialists should document the patient's progress and any changes in dietary intake.

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, enabling better tracking of treatment outcomes and resource allocation. F50.019 provides a means to capture cases where the type is unspecified, which can be important for treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of anorexia nervosa, enabling better tracking of treatment outcomes and resource allocation. F50.019 provides a means to capture cases where the type is unspecified, which can be important for treatment planning.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of anorexia nervosa, enabling better tracking of treatment outcomes and resource allocation. F50.019 provides a means to capture cases where the type is unspecified, which can be important for treatment planning.

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?

The restricting type involves limiting food intake and does not include binge-eating or purging behaviors, while the binge-eating/purging type includes episodes of binge-eating followed by purging.