ICD-10 code for cannabis use

The ICD-10-CM code for cannabis use is F12.90 (Cannabis use, unspecified, uncomplicated). The official index lists 12 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on F12.90.

Within F12.9 (cannabis use, unspecified), F12.90 is specifically for cannabis use, unspecified, uncomplicated. Related codes cover in remission (F12.91), with intoxication (F12.92), with withdrawal (F12.93), with psychotic disorder (F12.95), with other cannabis-induced disorder (F12.98) and with unspecified cannabis-induced disorder (F12.99).

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.