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F59 Unspecified behavioral syndromes associated with physiological disturbances and physical factors

ICD-10-CM category F59 sits in Chapter 5 (Mental, behavioral and neurodevelopmental disorders, F01-F99). It contains 1 billable code for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

The category code F59 itself is billable for FY2027: no more specific code exists under it.

Billable codes in F59

CodeDescription
F59Unspecified behavioral syndromes associated with physiological disturbances and physical factors

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