F15.121

Billable

Other stimulant abuse with intoxication delirium

HCC Category Mapping

V28HCC 137 — Drug Use Disorder/Substance Use Disorder, Moderate/Severe

0.358

V24HCC 55 — Drug/Alcohol Dependence

0.334

ESRDHCC 55 — Drug/Alcohol Dependence

0.000

What This Code Means

Abuse of stimulant drugs other than cocaine with intoxication that includes delirium, a state of confusion and altered mental status.

Coding Tips

•Delirium is a serious complication; document specific symptoms such as confusion, disorientation, or hallucinations
•This may require emergency intervention; ensure appropriate level of care is documented

Clinical Significance

Other stimulant abuse with intoxication delirium represents a medical emergency where a patient abusing non-cocaine stimulants develops acute delirium during intoxication. Stimulant-induced delirium can present as excited delirium syndrome with extreme agitation, hyperthermia, superhuman strength, and autonomic instability. Methamphetamine-induced delirium is particularly dangerous due to the drug's long duration of action. This condition carries significant mortality risk and requires emergency medical intervention including sedation, cooling measures, and cardiac monitoring.

Documentation Requirements

✓Provider documentation of stimulant abuse (not dependence)
✓Documentation of acute delirium with specific features (confusion, disorientation, altered consciousness, agitation)
✓Temporal relationship between stimulant use and delirium onset
✓Identification of the specific stimulant when possible
✓Vital signs including temperature (hyperthermia assessment)
✓Medical workup ruling out other causes of delirium
✓Level of care and interventions provided
✓Laboratory assessment (creatine kinase for rhabdomyolysis, metabolic panel)

Commonly Confused Codes

F15.120 — Other stimulant abuse with intoxication, uncomplicated: use when intoxication is present WITHOUT delirium F15.122 — Other stimulant abuse with intoxication with perceptual disturbance: use when perceptual disturbances are present without full delirium F15.221 — Other stimulant dependence with intoxication delirium: use when the pattern is dependence F14.121 — Cocaine abuse with intoxication delirium: use for cocaine-specific delirium F05 — Delirium due to known physiological condition: use for medical causes of delirium, not substance-induced

Code Hierarchy

└F15Other stimulant related disorders └F15.1Other stimulant abuse └F15.12Other stimulant abuse with intoxication └F15.121Other stimulant abuse with intoxication delirium

└F15.121Other stimulant abuse with intoxication delirium