F07.9 — Unspecified personality and behavioral disorder due to known physiological condition
Is F07.9 billable?
Yes, but F07.9 is an unspecified code. F07.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, F07.9 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting F07.9 — the more specific alternatives are listed below.
F07.9 at a glance
| Code | F07.9 |
|---|---|
| Description | Unspecified personality and behavioral disorder due to known physiological condition |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does F07.9 group to?
F07.9 sits in MDC 19 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 884Organic Disturbances and Intellectual Disabilitymedical
How is F07.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to F07.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Psychosyndrome, organic
- Disease, diseased › behavioral, organic
- Syndrome › psycho-organic
- Disorder › mental › following organic brain damage (of)
- Disorder › personality › following organic brain damage (of)
- Disorder › personality › organic (of)
- Disturbance › personality › following organic brain damage (s)
Inclusion terms
Alternative wording in documentation that is classified to F07.9.
- Organic psychosyndrome
Code first — inherited from F07
The underlying condition below must be sequenced before F07.9. F07.9 describes a manifestation and cannot be the principal or first-listed diagnosis.
- the underlying physiological condition
Excludes2 — not included here — inherited from Chapter 5
The conditions below are not part of F07.9, but a patient may have both at the same time. When documentation supports it, F07.9 and the excluded code may both be reported.
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
How long has F07.9 existed?
F07.9 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.