F16.283
BillableHallucinogen dependence with hallucinogen persisting perception disorder (flashbacks)
HCC Category Mapping
V28HCC 137 — Drug Use Disorder/Substance Use Disorder, Moderate/Severe
0.358V24HCC 55 — Drug/Alcohol Dependence
0.334ESRDHCC 55 — Drug/Alcohol Dependence
0.000What This Code Means
A person dependent on hallucinogenic drugs is experiencing flashbacks or persistent perceptual disturbances (spontaneous recurrence of hallucinogenic effects without taking the drug again).
Coding Tips
- •Hallucinogen persisting perception disorder (HPPD) can occur long after hallucinogen use; document the timeline of symptom onset
- •This condition is unique to hallucinogens and distinguishes it from other substance-induced disorders
Clinical Significance
Hallucinogen persisting perception disorder (HPPD) with dependence is a unique condition where patients experience spontaneous recurrences of hallucinogenic perceptual disturbances (flashbacks) long after cessation. This is distinct from active psychosis and can be chronic, causing significant functional impairment and psychological distress.
Documentation Requirements
- ✓Documentation of hallucinogen dependence (current or past)
- ✓Description of persisting perceptual disturbances (visual trails, halos, geometric patterns, intensified colors)
- ✓Statement that symptoms occur WITHOUT current hallucinogen use
- ✓Duration and frequency of flashback episodes
- ✓Functional impact of symptoms on daily life
- ✓Differentiation from active psychosis or intoxication
- ✓Neurological examination ruling out other causes of visual disturbances
Commonly Confused Codes
F16.251 — Hallucinogen dependence with psychotic disorder with hallucinations; active psychosis vs HPPD flashbacksF16.983 — Hallucinogen use, unspecified with HPPD; use when dependence is not establishedF16.220 — Hallucinogen dependence with intoxication; intoxication is acute use, HPPD occurs without current useH53.19 — Subjective visual disturbances, other; does not capture the substance-induced etiology
Code Hierarchy
└F16Hallucinogen related disorders└F16.2Hallucinogen dependence└F16.28Hallucinogen dependence with other hallucinogen-induced disorder└F16.283Hallucinogen dependence with hallucinogen persisting perception disorder (flashbacks)
└F16.283Hallucinogen dependence with hallucinogen persisting perception disorder (flashbacks)