F16.9
Non-billableHallucinogen use, unspecified
Hallucinogen use, unspecified
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- disorders of psychological development
- ecstasy
- PCP
- phencyclidine
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Child Codes (7)
F16.90Hallucinogen use, unspecified, uncomplicated
F16.91Hallucinogen use, unspecified, in remission
F16.92Hallucinogen use, unspecified with intoxication
F16.94Hallucinogen use, unsp w hallucinogen-induced mood disorder
F16.95Hallucinogen use, unsp w psychotic disorder
F16.98Hallucinogen use, unsp w oth hallucinogen-induced disorder
F16.99Hallucinogen use, unsp w unsp hallucinogen-induced disorder
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code F16.9?
ICD-10-CM code F16.9 represents "Hallucinogen use, unspecified". It is a non-billable header code — use a more specific child code for billing purposes.
Is F16.9 a billable code?
No, F16.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 7 child codes under F16.9.
What chapter is F16.9 in?
F16.9 is in Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (codes F01-F99).
What codes cannot be used with F16.9?
F16.9 has Excludes1 notes indicating codes that cannot be used together with it, including: hallucinogen abuse (F16.1-); hallucinogen dependence (F16.2-).
What are the subcategories under F16.9?
F16.9 has 7 child codes, including: F16.90 (Hallucinogen use, unspecified, uncomplicated), F16.91 (Hallucinogen use, unspecified, in remission), F16.92 (Hallucinogen use, unspecified with intoxication), F16.94 (Hallucinogen use, unsp w hallucinogen-induced mood disorder), and 3 more.
What are the UMLS CUIs for F16.9?
F16.9 is linked to 1 UMLS Concept Unique Identifier: C2874707. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.