ICD-10 Code F54 – Psychological and behavioral factors associated with disorders or diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F54 – Psychological and behavioral factors associated with disorders or diseases classified elsewhere
What it is
F54 identifies psychological or behavioral factors that affect a physical disorder or disease classified elsewhere. Use it when the mental or behavioral issue is clinically relevant but is not coded as a separate mental disorder.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records describe stress, maladaptive coping, or behavior that worsens symptoms, interferes with care, or affects the course of a documented medical condition.
When to use this code
Use F54 when the provider documents that psychological or behavioral factors are influencing a non-mental health condition, such as poor adherence, stress-related symptom worsening, or behavior affecting recovery. The underlying disease still needs its own code. Check documentation for the specific medical diagnosis and the nature of the factor.
Do not use for
Do not use F54 for a primary mental disorder, such as anxiety or depression, unless the record specifically supports this code. Do not use it when no relationship to a physical condition is documented.
Coding tip
Code the associated physical condition first, then add F54 only when the chart clearly links the behavioral factor to that condition.