F12.121

Billable

Cannabis abuse with intoxication delirium

HCC Category Mapping

V24HCC 55 — Drug/Alcohol Dependence

0.334

ESRDHCC 55 — Drug/Alcohol Dependence

0.000

What This Code Means

A person is abusing cannabis and is currently experiencing delirium (confusion, disorientation, and altered consciousness) as a direct result of cannabis intoxication.

Coding Tips

•Delirium must be documented as occurring during or shortly after cannabis intoxication
•Ensure the delirium is attributed to cannabis use and not to another medical condition or substance

Clinical Significance

Cannabis abuse with intoxication delirium represents a serious acute psychiatric emergency where cannabis use has led to confusion, disorientation, and altered consciousness beyond typical intoxication effects. Delirium indicates a higher level of clinical complexity and resource utilization, often requiring emergency department visits or inpatient monitoring. This diagnosis captures the severe end of the cannabis intoxication spectrum.

Documentation Requirements

✓Documentation of cannabis abuse (maladaptive use pattern)
✓Acute delirium symptoms: confusion, disorientation, altered consciousness, fluctuating awareness
✓Temporal relationship between cannabis use and onset of delirium
✓Mental status examination documenting the delirium findings
✓Exclusion of other causes of delirium (infection, metabolic, medication-related)
✓Distinction from cannabis-induced psychotic disorder (which persists beyond acute intoxication)

Commonly Confused Codes

F12.120 — Cannabis abuse with intoxication, uncomplicated; use when no delirium is present F12.122 — Cannabis abuse with intoxication with perceptual disturbance; use when perceptual changes occur without full delirium F12.150 — Cannabis abuse with psychotic disorder with delusions; use when psychosis persists beyond intoxication F05 — Delirium due to known physiological condition; use when delirium is not substance-induced

Code Hierarchy

└F12.121Cannabis abuse with intoxication delirium