DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

F16 Hallucinogen related disorders

  • Header · not billable

F16 is not billable. The category heads 40 billable codes in FY2027, grouped under 3 subdivisions.

Index → code

  • Flashbacks (residual to hallucinogen use) → F16.283
  • LSD reaction (acute) (without dependence) → F16.90
  • Use (of)hallucinogen NEC → F16.90

Where it sits

  1. Chapter 5 Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
  2. F10-F19 Mental and behavioral disorders due to psychoactive substance use (F10-F19)
  3. F16 Hallucinogen related disorders
Billable codes
40
Subdivisions
3
CC / MCC codes
14 / 0
HCC V28 codes
38
New FY2027
0
Index entries
109

Codes in F16

  1. F16.1
    Hallucinogen abuse
    Header
    Excludes1 2

    Excludes1

    • hallucinogen dependence (F16.2-) F16.2
    • hallucinogen use, unspecified (F16.9-) F16.9
  2. F16.10
    Hallucinogen abuse, uncomplicated
    Billable138
    Inclusion terms 2

    Inclusion terms

    • Other hallucinogen use disorder, mild
    • Phencyclidine use disorder, mild
  3. F16.11
    Hallucinogen abuse, in remission
    Billable138
    Inclusion terms 4

    Inclusion terms

    • Other hallucinogen use disorder, mild, in early remission
    • Other hallucinogen use disorder, mild, in sustained remission
    • Phencyclidine use disorder, mild, in early remission
    • Phencyclidine use disorder, mild, in sustained remission
  4. F16.12
    Hallucinogen abuse with intoxication
    Header
  5. F16.120
    Hallucinogen abuse with intoxication, uncomplicated
    Billable137
  6. F16.121
    Hallucinogen abuse with intoxication with delirium
    BillableCC137
  7. F16.122
    Hallucinogen abuse with intoxication with perceptual disturbance
    Billable137
  8. F16.129
    Hallucinogen abuse with intoxication, unspecified
    Billable137
  9. F16.14
    Hallucinogen abuse with hallucinogen-induced mood disorder
    Billable137
    Inclusion terms 4

    Inclusion terms

    • Other hallucinogen use disorder, mild, with other hallucinogen induced bipolar or related disorder
    • Other hallucinogen use disorder, mild, with other hallucinogen induced depressive disorder
    • Phencyclidine use disorder, mild, with phencyclidine induced bipolar or related disorder
    • Phencyclidine use disorder, mild, with phencyclidine induced depressive disorder
  10. F16.15
    Hallucinogen abuse with hallucinogen-induced psychotic disorder
    Header
  11. F16.150
    Hallucinogen abuse with hallucinogen-induced psychotic disorder with delusions
    BillableCC135
  12. F16.151
    Hallucinogen abuse with hallucinogen-induced psychotic disorder with hallucinations
    BillableCC135
  13. F16.159
    Hallucinogen abuse with hallucinogen-induced psychotic disorder, unspecified
    Billable135
  14. F16.18
    Hallucinogen abuse with other hallucinogen-induced disorder
    Header
  15. F16.180
    Hallucinogen abuse with hallucinogen-induced anxiety disorder
    Billable137
  16. F16.183
    Hallucinogen abuse with hallucinogen persisting perception disorder (flashbacks)
    Billable137
  17. F16.188
    Hallucinogen abuse with other hallucinogen-induced disorder
    Billable137
  18. F16.19
    Hallucinogen abuse with unspecified hallucinogen-induced disorder
    Billable137
  19. F16.2
    Hallucinogen dependence
    Header
    Excludes1 2

    Excludes1

    • hallucinogen abuse (F16.1-) F16.1
    • hallucinogen use, unspecified (F16.9-) F16.9
  20. F16.20
    Hallucinogen dependence, uncomplicated
    BillableCC137
    Inclusion terms 4

    Inclusion terms

    • Other hallucinogen use disorder, moderate
    • Other hallucinogen use disorder, severe
    • Phencyclidine use disorder, moderate
    • Phencyclidine use disorder, severe
  21. F16.21
    Hallucinogen dependence, in remission
    Billable137
    Inclusion terms 8

    Inclusion terms

    • Other hallucinogen use disorder, moderate, in early remission
    • Other hallucinogen use disorder, moderate, in sustained remission
    • Other hallucinogen use disorder, severe, in early remission
    • Other hallucinogen use disorder, severe, in sustained remission
    • Phencyclidine use disorder, moderate, in early remission
    • Phencyclidine use disorder, moderate, in sustained remission
    • Phencyclidine use disorder, severe, in early remission
    • Phencyclidine use disorder, severe, in sustained remission
  22. F16.22
    Hallucinogen dependence with intoxication
    Header
  23. F16.220
    Hallucinogen dependence with intoxication, uncomplicated
    Billable137
  24. F16.221
    Hallucinogen dependence with intoxication with delirium
    BillableCC137
  25. F16.229
    Hallucinogen dependence with intoxication, unspecified
    Billable137
  26. F16.24
    Hallucinogen dependence with hallucinogen-induced mood disorder
    Billable137
    Inclusion terms 8

    Inclusion terms

    • Other hallucinogen use disorder, moderate, with other hallucinogen induced bipolar or related disorder
    • Other hallucinogen use disorder, moderate, with other hallucinogen induced depressive disorder
    • Other hallucinogen use disorder, severe, with other hallucinogen-induced bipolar or related disorder
    • Other hallucinogen use disorder, severe, with other hallucinogen-induced depressive disorder
    • Phencyclidine use disorder, moderate, with phencyclidine induced bipolar or related disorder
    • Phencyclidine use disorder, moderate, with phencyclidine induced depressive disorder
    • Phencyclidine use disorder, severe, with phencyclidine induced bipolar or related disorder
    • Phencyclidine use disorder, severe, with phencyclidine-induced depressive disorder
  27. F16.25
    Hallucinogen dependence with hallucinogen-induced psychotic disorder
    Header
  28. F16.250
    Hallucinogen dependence with hallucinogen-induced psychotic disorder with delusions
    BillableCC135
  29. F16.251
    Hallucinogen dependence with hallucinogen-induced psychotic disorder with hallucinations
    BillableCC135
  30. F16.259
    Hallucinogen dependence with hallucinogen-induced psychotic disorder, unspecified
    BillableCC135
  31. F16.28
    Hallucinogen dependence with other hallucinogen-induced disorder
    Header
  32. F16.280
    Hallucinogen dependence with hallucinogen-induced anxiety disorder
    BillableCC137
  33. F16.283
    Hallucinogen dependence with hallucinogen persisting perception disorder (flashbacks)
    BillableCC137
  34. F16.288
    Hallucinogen dependence with other hallucinogen-induced disorder
    BillableCC137
  35. F16.29
    Hallucinogen dependence with unspecified hallucinogen-induced disorder
    Billable137
  36. F16.9
    Hallucinogen use, unspecified
    Header
    Excludes1 2

    Excludes1

    • hallucinogen abuse (F16.1-) F16.1
    • hallucinogen dependence (F16.2-) F16.2
  37. F16.90
    Hallucinogen use, unspecified, uncomplicated
    Billable
  38. F16.91
    Hallucinogen use, unspecified, in remission
    Billable
  39. F16.92
    Hallucinogen use, unspecified with intoxication
    Header
  40. F16.920
    Hallucinogen use, unspecified with intoxication, uncomplicated
    Billable137
  41. F16.921
    Hallucinogen use, unspecified with intoxication with delirium
    BillableCC137
    Inclusion terms 1

    Inclusion terms

    • Other hallucinogen intoxication delirium
  42. F16.929
    Hallucinogen use, unspecified with intoxication, unspecified
    Billable137
  43. F16.94
    Hallucinogen use, unspecified with hallucinogen-induced mood disorder
    Billable137
    Inclusion terms 4

    Inclusion terms

    • Other hallucinogen induced bipolar or related disorder, without use disorder
    • Other hallucinogen induced depressive disorder, without use disorder
    • Phencyclidine induced bipolar or related disorder, without use disorder
    • Phencyclidine induced depressive disorder, without use disorder
  44. F16.95
    Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder
    Header
  45. F16.950
    Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder with delusions
    BillableCC135
  46. F16.951
    Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder with hallucinations
    BillableCC135
  47. F16.959
    Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder, unspecified
    Billable135
    Inclusion terms 2

    Inclusion terms

    • Other hallucinogen induced psychotic disorder, without use disorder
    • Phencyclidine induced psychotic disorder, without use disorder
  48. F16.98
    Hallucinogen use, unspecified with other specified hallucinogen-induced disorder
    Header
  49. F16.980
    Hallucinogen use, unspecified with hallucinogen-induced anxiety disorder
    Billable137
    Inclusion terms 2

    Inclusion terms

    • Other hallucinogen-induced anxiety disorder, without use disorder
    • Phencyclidine induced anxiety disorder, without use disorder
  50. F16.983
    Hallucinogen use, unspecified with hallucinogen persisting perception disorder (flashbacks)
    Billable137
  51. F16.988
    Hallucinogen use, unspecified with other hallucinogen-induced disorder
    Billable137
  52. F16.99
    Hallucinogen use, unspecified with unspecified hallucinogen-induced disorder
    Billable137

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At F16

Includes

  • ecstasy
  • PCP
  • phencyclidine

Notes that also apply

Chapter 5 instructions (Includes 1, Excludes2 1): printed on the chapter 5 page.

Index entries

  • Flashbacks (residual to hallucinogen use) → F16.283
  • LSD reaction (acute) (without dependence) → F16.90
  • LSD reaction (acute) (without dependence)with dependence → F16.20
  • Use (of)hallucinogen NEC → F16.90
  • Phencyclidine-inducedbipolar and related disorder → F16.94
  • Phencyclidine-induceddepressive disorder → F16.94
  • Phencyclidine-inducedpsychotic disorder → F16.959
  • Phencyclidine-inducedanxiety disorder → F16.980
  • Disorder (of)perception, due to hallucinogens → F16.983
  • Disorder (of)posthallucinogen perception → F16.983
  • Abusedrug NEC (non-dependent)hallucinogen → F16.10
  • Disorder (of)hallucinogen usemild → F16.10
  • Disorder (of)phencyclidine usemild → F16.10
  • Disturbance(s)perceptual due tophencyclidine intoxication (acute) → F16.122
  • Hallucinosis (chronic)drug-inducedhallucinogen → F16.151
  • Dependence (on) (syndrome)drug NEChallucinogen → F16.20
  • Disorder (of)hallucinogen usemoderate or severe → F16.20
  • Disorder (of)phencyclidine usemoderate or severe → F16.20
  • Use (of)hallucinogen NECin remission → F16.91
  • Delirium, delirious (acute or subacute) (not alcohol- or drug-induced)due to (secondary to)hallucinogen intoxication → F16.921
  • Delirium, delirious (acute or subacute) (not alcohol- or drug-induced)due to (secondary to)phencyclidine intoxication (acute) → F16.921
  • Abusedrug NEC (non-dependent)hallucinogenin remission (early) (sustained) → F16.11
  • Disorder (of)hallucinogen usemildin remission (early) (sustained) → F16.11
  • Disorder (of)phencyclidine usemildin remission (early) (sustained) → F16.11
  • Disorder (of)perception, due to hallucinogensinabuse → F16.183
  • Disorder (of)posthallucinogen perceptioninabuse → F16.183
  • Dependence (on) (syndrome)drug NEChallucinogenin remission → F16.21
  • Disorder (of)hallucinogen usemoderate or severein remission (early) (sustained) → F16.21
  • Disorder (of)phencyclidine usemoderate or severein remission (early) (sustained) → F16.21
  • Disorder (of)perception, due to hallucinogensindependence → F16.283
  • Disorder (of)posthallucinogen perceptionindependence → F16.283
  • Use (of)hallucinogen NECwithintoxication → F16.929
  • Disorder (of)mooddue to (secondary to)hallucinogen → F16.94
  • Disorder (of)mooddue to (secondary to)phencyclidine (PCP) → F16.94
  • Use (of)hallucinogen NECwithmood disorder → F16.94
  • Use (of)hallucinogen NECwithpsychosis → F16.959
  • Disorder (of)anxietydue to (secondary to)hallucinogen → F16.980
  • Disorder (of)anxietydue to (secondary to)phencyclidine → F16.980
  • Use (of)hallucinogen NECwithanxiety disorder → F16.980
  • Use (of)hallucinogen NECwithperception disorder (flashbacks) → F16.983

69 more, longer entries are not listed; the search box finds them by word.

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