Is F59 a billable code?
Yes. F59 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.
ICD-10-CM FY2027 diagnosis code
F59: Unspecified behavioral syndromes associated with physiological disturbances and physical factors
Billable codeValid for dates of service October 1, 2026 to September 30, 2027
F59 is a billable ICD-10-CM diagnosis code for unspecified behavioral syndromes associated with physiological disturbances and physical factors. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.
Superbill GeneratorStart a superbill with F59 already added.Good Faith EstimateStart a cost estimate with F59 already added.CMS-1500 Claim FormFill a claim form with F59 in box 21.
F59 questions
What does F59 mean?
F59 is the ICD-10-CM code for Unspecified behavioral syndromes associated with physiological disturbances and physical factors. It is in chapter 5, Mental, behavioral and neurodevelopmental disorders (F01-F99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.