F16.921Billable
Hallucinogen use, unspecified with intoxication with delirium
Short description: Hallucinogen use, unsp with intoxication with delirium
- Chapter
- 5. Mental, Behavioral and Neurodevelopmental disorders
- Category
- F16
- Effective date
- October 1, 2026
Related codes in category F16
F16Hallucinogen related disordersF16.1Hallucinogen abuseF16.10Hallucinogen abuse, uncomplicatedYesF16.11Hallucinogen abuse, in remissionYesF16.12Hallucinogen abuse with intoxicationF16.120Hallucinogen abuse with intoxication, uncomplicatedYesF16.121Hallucinogen abuse with intoxication with deliriumYesF16.122Hallucinogen abuse w intoxication w perceptual disturbanceYesF16.129Hallucinogen abuse with intoxication, unspecifiedYesF16.14Hallucinogen abuse with hallucinogen-induced mood disorderYesF16.15Hallucinogen abuse w hallucinogen-induced psychotic disorderF16.150Hallucinogen abuse w psychotic disorder w delusionsYes
Frequently asked questions
What is ICD-10 code F16.921?
F16.921 is an ICD-10-CM diagnosis code for Hallucinogen use, unspecified with intoxication with delirium.
Is F16.921 a billable code?
Yes. F16.921 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is F16.921 in?
F16.921 falls under Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.
When did F16.921 become effective?
F16.921 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to F16.921?
F16.921 belongs to category F16, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.