F40 — Phobic anxiety disorders

Not billable

F40 at a glance

CodeF40
DescriptionPhobic anxiety disorders
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Excludes2 — not included here — inherited from Chapter 5

The conditions below are not part of F40, but a patient may have both at the same time. When documentation supports it, F40 and the excluded code may both be reported.

  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

What codes fall under F40? (5)

How long has F40 existed?

F40 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.