ICD-10 code for flashbacks

The ICD-10-CM code for flashbacks is F16.283 (Hallucinogen dependence with hallucinogen persisting perception disorder (flashbacks)).

Within F16.28 (hallucinogen dependence with other hallucinogen-induced disorder), F16.283 is specifically for hallucinogen dependence with hallucinogen persisting perception disorder (flashbacks). Related codes cover hallucinogen-induced anxiety disorder (F16.280) and other hallucinogen-induced disorder (F16.288).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

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.