F78 — Other intellectual disabilities
Is F78 billable?
No — F78 is a non-billable header code. F78 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 2 billable codes beneath F78.
Billable codes under this header
F78 at a glance
| Code | F78 |
|---|---|
| Description | Other intellectual disabilities |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from F70-F79
The conditions below can never be reported together with F78 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- borderline intellectual functioning, IQ above 70 to 84 (R41.83)
Code first — inherited from F70-F79
The underlying condition below must be sequenced before F78. F78 describes a manifestation and cannot be the principal or first-listed diagnosis.
- any associated physical or developmental disorders
Excludes2 — not included here — inherited from Chapter 5
The conditions below are not part of F78, but a patient may have both at the same time. When documentation supports it, F78 and the excluded code may both be reported.
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
What codes fall under F78? (1)
How long has F78 existed?
F78 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
- FY2022: F78 stopped being billable
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.