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ICD-10-CM Codes
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F01-F99
Mental, Behavioral and Neurodevelopmental disorders
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F10-F19
Mental and behavioral disorders due to psychoactive substance use
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F16-
Hallucinogen related disorders
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2021 ICD-10-CM Diagnosis Code F16.9
2021 ICD-10-CM Diagnosis Code F16.9
Hallucinogen use, unspecified
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
- F16.9 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2021 edition of ICD-10-CM F16.9 became effective on October 1, 2020.
- This is the American ICD-10-CM version of F16.9 - other international versions of ICD-10 F16.9 may differ.
Type 1 ExcludesType 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as F16.9. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
The following code(s) above
F16.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
F16.9:
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
Code annotations containing back-references to F16.9:
ICD-10-CM Codes Adjacent To F16.9
F16.24 …… with hallucinogen-induced mood disorder
F16.25 Hallucinogen dependence with hallucinogen-induced psychotic disorder
F16.28 Hallucinogen dependence with other hallucinogen-induced disorder
F16.280 Hallucinogen dependence with hallucinogen-induced anxiety disorder
F16.283 Hallucinogen dependence with hallucinogen persisting perception disorder (flashbacks)
F16.288 Hallucinogen dependence with other hallucinogen-induced disorder
F16.29 …… with unspecified hallucinogen-induced disorder
F16.9
Hallucinogen use, unspecified
F16.92 Hallucinogen use, unspecified with intoxication
F16.94 …… with hallucinogen-induced mood disorder
F16.95 Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
