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ICD-10-CM Codes
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F01-F99
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F10-F19
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F16-
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2023 ICD-10-CM Diagnosis Code F16.921
2023 ICD-10-CM Diagnosis Code F16.921
Hallucinogen use, unspecified with intoxication with delirium
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- F16.921 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- Short description: Hallucinogen use, unsp with intoxication with delirium
- The 2023 edition of ICD-10-CM F16.921 became effective on October 1, 2022.
- This is the American ICD-10-CM version of F16.921 - other international versions of ICD-10 F16.921 may differ.
Applicable To- Other hallucinogen intoxication delirium
The following code(s) above
F16.921 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
F16.921:
- F01-F99
2023 ICD-10-CM Range F01-F99
Mental, Behavioral and Neurodevelopmental disordersIncludes- disorders of psychological development
Type 2 Excludes- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
- F16
ICD-10-CM Diagnosis Code F16
Hallucinogen related disorders
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- F16.9
ICD-10-CM Diagnosis Code F16.9
Hallucinogen use, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- Hallucinogen delirium
- Hallucinogen intoxication delirium
- Pcp delirium
- Pcp intoxication delirium
ICD-10-CM F16.921 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 894 Alcohol, drug abuse or dependence, left ama
- 895 Alcohol, drug abuse or dependence with rehabilitation therapy
- 896 Alcohol, drug abuse or dependence without rehabilitation therapy with mcc
- 897 Alcohol, drug abuse or dependence without rehabilitation therapy without mcc
Convert F16.921 to ICD-9-CM
Code History
- 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
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- Delirium, delirious (acute or subacute) (not alcohol- or drug-induced) (with dementia) R41.0
ICD-10-CM Diagnosis Code R41.0
Disorientation, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Confusion NOS
- Delirium NOS
- Use (of)
- hallucinogen NEC F16.90
ICD-10-CM Diagnosis Code F16.90
Hallucinogen use, unspecified, uncomplicated
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- with
- intoxication F16.929
ICD-10-CM Diagnosis Code F16.929
Hallucinogen use, unspecified with intoxication, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
ICD-10-CM Codes Adjacent To F16.921
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
F16.921
…… with delirium
F16.94 …… with hallucinogen-induced mood disorder
F16.95 Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder
F16.98 Hallucinogen use, unspecified with other specified hallucinogen-induced disorder
F16.980 Hallucinogen use, unspecified with hallucinogen-induced anxiety disorder
F16.983 Hallucinogen use, unspecified with hallucinogen persisting perception disorder (flashbacks)
F16.988 Hallucinogen use, unspecified with other hallucinogen-induced disorder
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
