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ICD-10-CM chapter 5 · F01-F99

Mental, Behavioral and Neurodevelopmental disorders

About chapter 5

Chapter 5 (F01-F99) contains 72 categories and 872 billable codes for FY2027. This year's update added 1 and deleted 0 codes here. 0 codes are MCCs and 338 are CCs when reported as secondary diagnoses.

11 code blocks

Chapter notes

Includes
  • disorders of psychological development
Excludes2
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)