Best Coding Practices: Major Depressive Disorder

Major Depressive Disorder (MDD) is a severe mood disorder characterized by ongoing sadness, a loss of interest in activities, and significant challenges in daily life. The condition stems from a combination of genetic, biological, environmental, and psychological influences.

Common symptoms include changes in sleep patterns, appetite disturbances, persistent fatigue, difficulty concentrating, feelings of worthlessness or guilt, and thoughts of death or suicide. These symptoms can profoundly impact daily life by causing fatigue, leading to social isolation, and interfering with work or relationships.

Documenting MDD

To ensure an accurate diagnosis, it's crucial to utilize PHQ-9* scores and clinical findings, avoiding ”unspecified“ diagnoses. While treatment focuses on symptom control rather than an outright cure, MDD remains a chronic condition, even with controlled symptoms (partial or full remission). Therefore, annual severity assessments are essential to guide diagnosis coding and treatment adjustments.

ICD-10 codes from category F32 and F33 should be used when coding for Major Depressive Disorder. Characterizing MDD by episode, severity, and remission status allows for an accurate reflection of disease burden.

Coding Resources

For coding guidance on MDD, visit the Coding Education/HCC University page of the Provider Resource Center. In addition to MDD, the page has coding resources, course presentations, and videos on more than 30 diseases and conditions, including:

• Arrhythmias
• Bipolar Disorder
• Cancer
• Dementia
• Hypertension
• Morbid Obesity
• Transplant Status

*PHQ is an acronym for Patient Health Questionnaire.