F16.9 — Hallucinogen use, unspecified
Is F16.9 billable?
No — F16.9 is a non-billable header code. F16.9 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 13 billable codes beneath F16.9.
Billable codes under this header
- F16.90Hallucinogen use, unspecified, uncomplicated
- F16.91Hallucinogen use, unspecified, in remission
- F16.94Hallucinogen use, unspecified with hallucinogen-induced mood disorder
- F16.99Hallucinogen use, unspecified with unspecified hallucinogen-induced disorder
- F16.920Hallucinogen use, unspecified with intoxication, uncomplicated
- F16.921Hallucinogen use, unspecified with intoxication with delirium
- F16.929Hallucinogen use, unspecified with intoxication, unspecified
- F16.950Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder with delusions
- F16.951Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder with hallucinations
- F16.959Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder, unspecified
- F16.980Hallucinogen use, unspecified with hallucinogen-induced anxiety disorder
- F16.983Hallucinogen use, unspecified with hallucinogen persisting perception disorder (flashbacks)
- F16.988Hallucinogen use, unspecified with other hallucinogen-induced disorder
F16.9 at a glance
| Code | F16.9 |
|---|---|
| Description | Hallucinogen use, unspecified |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with F16.9 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 5
The conditions below are not part of F16.9, but a patient may have both at the same time. When documentation supports it, F16.9 and the excluded code may both be reported.
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
What codes fall under F16.9? (7)
- F16.90Hallucinogen use, unspecified, uncomplicated
- F16.91Hallucinogen use, unspecified, in remission
- F16.92Hallucinogen use, unspecified with intoxicationnot billable
- F16.94Hallucinogen use, unspecified with hallucinogen-induced mood disorder
- F16.95Hallucinogen use, unspecified with hallucinogen-induced psychotic disordernot billable
- F16.98Hallucinogen use, unspecified with other specified hallucinogen-induced disordernot billable
- F16.99Hallucinogen use, unspecified with unspecified hallucinogen-induced disorder
How long has F16.9 existed?
F16.9 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.