ICD-10-CM 2027
ICD-10 code for psychotic disorder phencyclidine-induced
Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder, unspecified
From the official ICD-10-CM alphabetic index entry “Phencyclidine-induced › psychotic disorder”. Page updated September 29, 2026.
About coding psychotic disorder phencyclidine-induced
The ICD-10-CM code for psychotic disorder phencyclidine-induced is F16.959 (Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder, unspecified).
Within F16.95, choose F16.959 (unspecified) only when documentation doesn't support a more specific option: with delusions (F16.950) and with hallucinations (F16.951).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 894 (Alcohol, Drug Abuse or Dependence, Left AMA, relative weight 0.6275), DRG 895 (Alcohol, Drug Abuse or Dependence with Rehabilitation Therapy, relative weight 1.4266), DRG 896 (Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy with MCC, relative weight 1.6617) and DRG 897 (Alcohol, Drug Abuse or Dependence without Rehabilitation Therapy without MCC, relative weight 0.8584), in MDC 20 (Alcohol/Drug Use and Alcohol/Drug Induced Organic Mental Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about psychotic disorder phencyclidine-induced ICD-10 codes
What is the ICD-10 code for psychotic disorder phencyclidine-induced?
- F16.959 — Hallucinogen use, unspecified with hallucinogen-induced psychotic disorder, unspecified.
Is F16.959 billable?
- Yes. F16.959 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F16.959 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F16.959 as a principal diagnosis.
Is F16.959 a CC or MCC?
- No. F16.959 is neither a CC nor an MCC under MS-DRG v44.0.